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You searched for: Journal name Chemistry of natural compounds Remove constraint Journal name: Chemistry of natural compounds Subject term spectral analysis Remove constraint Subject term: spectral analysis Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. A New Cycloartane Glycoside from the Aerial Part of Astragalus grahamianus

Author:
Shameem A. Shameem; Abid H. Banday; Khaliquz Zaman Khan; Mudasir A. Tantry; Bashir A. Ganai
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 71-74
ISSN:
0009-3130
Subject:
Astragalus; aerial parts; chemistry; glycosides; spectral analysis
Abstract:
... A new 9,19-cyclolanostane type arabinoside, 16,23;22,25-diepoxy-3β,22,23,24-tetrahydroxy-9,19-cyclolanostane-3-O-α-L-arabinopyranoside (1), together with two known compounds (2 and 3), was isolated from the aerial part of Astragalus grahamianus. The structures of these compounds were characterized and identified by 1D and 2D NMR spectroscopic techniques and HR-ESI-MS and by comparison of their spe ...
DOI:
10.1007/s10600-022-03598-w

2. A New Phenylpropanoid-Substituted Flavan-3-ol from Aerial Part of Mentha longifolia

Author:
Man Wang; Yan Wang; Lei Shi; Yi’an Lu; Haiying Zhu; Lin Liang; Zhen-Liang Sun
Source:
Chemistry of natural compounds 2022 v.58 no.2 pp. 237-239
ISSN:
0009-3130
Subject:
Mentha longifolia; aerial parts; chemistry; circular dichroism spectroscopy; lipopolysaccharides; nitric oxide; spectral analysis
Abstract:
... One new phenylpropanoid-substituted flavan-3-ol, named longifoin A, together with five known compounds, was isolated from the aerial part of Mentha longifolia. Their structures were elucidated on the basis of spectral analysis, including 1D and 2D NMR and electronic circular dichroism calculations. Compound 1 significantly inhibited nitric oxide production in lipopolysaccharide induced RAW 264.7 c ...
DOI:
10.1007/s10600-022-03649-2

3. A New Rotenoid Derivative from the Aerial Part of Boerhavia erecta

Author:
Lien T. M. Do; Tuyet T. A. Nguyen; Phung K. P. Nguyen; Truong L. Tuong; Toan N. Vo; Jirapast Sichaem
Source:
Chemistry of natural compounds 2022 v.58 no.2 pp. 227-229
ISSN:
0009-3130
Subject:
Boerhavia erecta; aerial parts; chemistry; spectral analysis
Abstract:
... A previously unreported rotenoid derivative, boeractanone (1), along with four known compounds, isobavachalcone (2), syringaresinol (3), 4-hydroxy-3-methoxybenzoic acid (4), and 3,4-dihydroxybenzoic acid (5), was isolated from the aerial part of Boerhavia erecta L. Their structures were elucidated by spectroscopic data analysis (1D and 2D NMR and HR-ESI-MS) and comparison with published NMR data. ...
DOI:
10.1007/s10600-022-03646-5

4. A Novel Biphenyl Derivative from Cinnamomum insulari-montanum

Author:
C. Y. Chen; M. D. Wu; H. C. Yeh; H. M. Wu; H. T. Li; M. J. Cheng
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 18-20
ISSN:
0009-3130
Subject:
Cinnamomum; biphenyl; chemistry; spectral analysis
Abstract:
... A novel biphenyl derivative, insularione (3,3′,4,4′,6-pentahydroxy-3,4-dihydro-[1,1′-biphenyl]-2,5-dione) (1), was isolated from the stems of Cinnamomum insulari-montanum Hayata (Lauraceae) along with six known compounds. The structure of the novel biphenyl derivative was characterized on the basis of spectral analysis. ...
DOI:
10.1007/s10600-022-03590-4

5. Anti-Proliferative Naphthalene Glucoside from Aerial Part of Neanotis wightiana

Author:
Niranjan Das; Prashanta Kumar Deb; Eunus S. Ali; Manash C. Das; Biswatrish Sarkar; Siddhartha Kumar Mishra
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 21-26
ISSN:
0009-3130
Subject:
aerial parts; breast neoplasms; chemistry; cytotoxicity; glucosides; humans; naphthalene; neoplasm cells; spectral analysis
Abstract:
... A new bioactive naphthalene glucoside, named neanoside C (1), was isolated from the aerial part of Neanotis wightiana. The structure of neanoside C (1) was elucidated as 1,4-dihydroxy-2-(6′-Omethylglucopyranosyloxymethyl)-naphthalene-3-vinyloxyglucopyranoside by interpretation of the spectroscopic data, including 2D NMR and chemical studies. Neanoside C (1) was further subjected to screening for a ...
DOI:
10.1007/s10600-022-03591-3

6. Chemical Constituents of the Aerial Part of Zygophyllum gaetulum

Author:
M. Belguidoum; H. Dendougui; H. Araya; Y. Fujimoto; S. Akkal; C. Bensaci; A. Belfar; K. Bireche; M. Hadjadj
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 9-13
ISSN:
0009-3130
Subject:
Zygophyllum; aerial parts; spectral analysis; sulfates; triterpenoid saponins
Abstract:
... A new megastigman sulfate (1) was isolated from the aerial part of Zygophyllum gaetulum. The structure of 1 was elucidated as (E)-3-sulfooxymegastigm-7-en-9-one by analysis of spectroscopic data. In addition, 22 known compounds were isolated. Triterpenoid saponins 3, 4, 5, 7, 9, 12, and 13, and compounds 17–23 were isolated from Z. gaetulum for the first time. ...
DOI:
10.1007/s10600-022-03588-y

7. Further Study on Chemical Constituents from the Seeds of Michelia hedyosperma

Author:
Hai-jun Wang; Li-na Qin; Ming-Zhu Li; Xian-you Wang
Source:
Chemistry of natural compounds 2022 v.58 no.1 pp. 75-77
ISSN:
0009-3130
Subject:
Magnolia hypolampra; glucosides; spectral analysis
Abstract:
... A new phenylpropanoid glucoside, michehedyoside G (1), together with two known compounds, including 9-(β-D-ribofuranosyl)-adenosine (2) and (±)-1,2-methylenedioxy-4-(1,2,3-trihydroxypropyl)-benzene (3), were isolated from the seeds of Michelia hedyosperma Y. W. Law (Magnoliaceae). Their structures were confirmed by comprehensive spectroscopic analysis. ...
DOI:
10.1007/s10600-022-03599-9

8. New Metabolite from the Fungus Monascus argentinensis BCRC 33998

Author:
Jih-Jung Chen; Ming-Jen Cheng; Ming-Der Wu; Nanthaphong Khamthong
Source:
Chemistry of natural compounds 2022 v.58 no.2 pp. 287-289
ISSN:
0009-3130
Subject:
Monascus; chemistry; diterpenoids; fungi; metabolites; mutants; phytochemicals; red yeast rice; spectral analysis
Abstract:
... Phytochemical investigation of the CH₂Cl₂-soluble fraction of the EtOH extract of red mold rice fermented with the white mutant of the fungus Monascus argentinensis BCRC 33998 (Eurotiaceae) led to the isolation and characterization of a new diterpenoid, monascusargentinoic acid (1). The structure of the new compound was elucidated by analysis of its spectroscopic data, including MS, 1D, and 2D NMR ...
DOI:
10.1007/s10600-022-03661-6

9. Two New Bioactive Metabolites from Xestospongia sp. with Antimicrobial and Anticancer Activities

Author:
Rihab F. Angawi; Mona M. Alamri; Seif-Eldin N. Ayyad; Ahmed A. Alotaibi; Magda M. Aly; Walied M. Alarif
Source:
Chemistry of natural compounds 2022 v.58 no.2 pp. 301-306
ISSN:
0009-3130
Subject:
Artemia salina; Aspergillus niger; Candida albicans; lymphoma; metabolites; spectral analysis; sterols; toxicity; Red Sea
Abstract:
... The CH₂Cl₂-MeOH extract of the Red Sea sponge Xestospongia sp. afforded two new compounds (1 and 2) and two previously identified C-30 sterols (3 and 4). The chemical structures of the isolated compounds were deduced by examining their NMR and MS spectral data. The antimicrobial activity evaluation of the isolated compounds showed that all the compounds have moderate to good antibacterial effects ...
DOI:
10.1007/s10600-022-03664-3

10. 1H NMR Reassignment for Z/E-Benzomalvins B and Absolute Configuration of Benzomalvin C

Author:
Rong Chao; Yan-Wei Wu; Ling Lu; Wei-Feng Xu; Chang-Yun Wang; Chang-Lun Shao
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 343-345
ISSN:
0009-3130
Subject:
Aspergillus; Sinularia; X-ray diffraction; corals; irradiation; marine fungi; spectral analysis; South China Sea
Abstract:
... Benzomalvins B, C, and E (1, 2, and 3) were simultaneously obtained from the marine fungus Aspergillus sp. isolated from the soft coral Sinularia sp., collected from South China Sea. Their structures were elucidated on the basis of NMR spectroscopic data and by comprehensive comparison with those previously reported in the literature. The stability of the double bond of E-benzomalvin B (1) under d ...
DOI:
10.1007/s10600-021-03347-5

11. A New Anthraquinone-Aurone Adduct with Hepatoprotective Activity from the Fruits of Cucumis bisexualis

Author:
Qinge Ma; Rongrui Wei
Source:
Chemistry of natural compounds 2021 v.57 no.5 pp. 828-831
ISSN:
0009-3130
Subject:
Cucumis; chemistry; hepatoprotective effect; spectral analysis
Abstract:
... A previously undescribed anthraquinone-aurone adduct 1, named 8-(4′-hydroxy-3′,5′-dimethoxyphenyl)-12-hydroxy-7-(6′′,7′′-dimethylfuran-2′′-one)-9,16-anthraquinone-furochromene-3,2′′-dione, was isolated from the fruits of Cucumis bisexualis. Its structure was determined by comprehensive spectroscopic data and references. Compound 1 was evaluated for its inhibitory effect against the increase in AST ...
DOI:
10.1007/s10600-021-03490-z

12. A New Arylbenzofuran Derivative from Mentha canadensis

Author:
Ming-Liang Li; Yan-Hua Sun; Qing-Min Yang; Min-Jian Qin; Shi-Hui Qian
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 44-46
ISSN:
0009-3130
Subject:
Mentha canadensis; chemistry; spectral analysis
Abstract:
... A new arylbenzofuran derivative, menthanolic acid A, was isolated from the aerial parts of Mentha canadensis L. The structure was elucidated on the basis of 1D/2D NMR, and HR-ESI-MS spectroscopic data. ...
DOI:
10.1007/s10600-021-03277-2

13. A New Cycloartanyl Ester from the Roots of Codonopsis pilosula and Its Anti-Inflammatory Activity

Author:
Jiankuan Li; Junqing Zhang; Lingya Cao; Jiaojiao Ji; Jianping Gao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 120-122
ISSN:
0009-3130
Subject:
Codonopsis pilosula; anti-inflammatory activity; chemistry; spectral analysis
Abstract:
... A new cycloartanyl ester, named codonopilate D (1), was isolated from the roots of Codonopsis pilosula (Franch.) Nannf. The structure of compound 1 was elucidated by extensive spectroscopic analysis including UV, IR, MS, and NMR data. Compound 1 exhibited the potential of inhibiting LPS-induced NO production in RAW 264.7 cells. ...
DOI:
10.1007/s10600-021-03295-0

14. A New Diphenyl Ether from the Lichen Parmotrema praesorediosum

Author:
B. L. C. Huynh
Source:
Chemistry of natural compounds 2021 v.57 no.4 pp. 667-669
ISSN:
0009-3130
Subject:
Parmotrema; chemical structure; diphenyl ethers; lichens; spectral analysis
Abstract:
... A new diphenyl ether, named praesorether P (1), was isolated from the lichen Parmotrema praesorediosum (Nyl.) Hale. Its chemical structure was elucidated on the basis of extensive spectroscopic analysis including HR-ESI-MS and NMR as well as comparison with previously published data. ...
DOI:
10.1007/s10600-021-03446-3

15. A New Diterpenoid Against Endometrial Cancer from Sheareria nana

Author:
Zhongyan Tang; Zhengxiang Xia
Source:
Chemistry of natural compounds 2021 v.57 no.4 pp. 691-694
ISSN:
0009-3130
Subject:
carcinoma; chemistry; cytotoxicity; diterpenoids; endometrium; humans; spectral analysis; uterine neoplasms
Abstract:
... A new diterpenoid, 15,16,17-trihydroxy,18-carboxylic acid 18-neo-clerodan-3,13-(Z)-diene was isolated from Sheareria nana S. Moore. The structure was elucidated by spectroscopic data. Compound 1 was evaluated for cytotoxic activities against human endometrial carcinoma cells (ECC-1). The results indicated that 1 showed moderate cytotoxic activity against ECC-1 cell lines with IC₅₀ values of 5.6 ± ...
DOI:
10.1007/s10600-021-03451-6

16. A New Ent-Kaurane from the Roots of Lasianthaea aurea

Author:
Ana K. Villagomez-Guzman; Gabriela Rodriguez-Garcia; Rosa E. del Rio; Antonio J. Oliveros Ortiz; Carlos M. Cerda-Garcia-Rojas; Pedro Joseph-Nathan; Mario A. Gomez-Hurtado
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 319-322
ISSN:
0009-3130
Subject:
X-ray diffraction; chemistry; kaurenoic acid; spectral analysis; Mexico
Abstract:
... A known kaurenoic acid (1), together with a new kaurane derivative named 3α-isobutyryloxykaurenoic acid (2), was isolated from the roots of Lasianthaea aurea, a plant endemic to Mexico. The compounds were characterized using their physical and spectroscopic data. In order to verify the structure and absolute configuration of 2, the derived methyl ester 3, obtained after diazomethane treatment, was ...
DOI:
10.1007/s10600-021-03357-3

17. A New Eremophilane Sesquiterpenoid from Ligularia przewalskii

Author:
Shuai Ma; Jian-Ming Zhou; Qing-Shan Gao; Fang-Xiao Liu
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 309-311
ISSN:
0009-3130
Subject:
Ligularia; chemistry; sesquiterpenoids; spectral analysis
Abstract:
... A new eremophilane sesquiterpenoid, 3β-acetoxy-6α-angeloyloxy-eremophil-1(10),7(11),8(9)-trien-12,8-olide (1), was isolated from Ligularia przewalskii. The structure of the new compound was elucidated by physical and spectroscopic data analysis, including 1D NMR, 2D NMR, and HR-ESI-MS. ...
DOI:
10.1007/s10600-021-03354-6

18. A New Flavanone from Citrus reticulata

Author:
C. Y. Chen; J. J. Wang; C. L. Kao; H. C. Yeh; P. L. Song; S. L. Liu; H. M. Wu; H. T. Li; W. J. Li
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 277-279
ISSN:
0009-3130
Subject:
Citrus reticulata; chemistry; flavanones; fruits; polymethoxyflavones; spectral analysis
Abstract:
... A new flavanone, 5-hydroxy-7,2′,3′,4′,5′,6′-hexamethoxyflavanone (1), was isolated from the unripe fruit peels of Citrus reticulata (Rutaceae), together with two known polymethoxyflavones, 5,6,7,8,3′,4′ -hexamethoxyflavone (2) and 5,6,7,8,4′-pentamethoxyflavone (3). The structure of 1 was characterized and identified by spectral analysis. ...
DOI:
10.1007/s10600-021-03336-8

19. A New Lignan from the Leaves of Orthosiphon aristatus

Author:
Yu-Xin Yan; Li-Jun Yan; Yong-Chao Wang; Yu-Xiang Bei
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 254-256
ISSN:
0009-3130
Subject:
Orthosiphon aristatus; chemistry; lignans; methanol; spectral analysis
Abstract:
... Investigation of the methanol extract of the leaves of Orthosiphon aristatus led to the isolation of four compounds. Their structures were elucidated on the basis of spectroscopic evidence and comparison with the literature. Among these compounds, compound 1 is a new lignan, and 2–4 were isolated from this plant for the first time. ...
DOI:
10.1007/s10600-021-03330-0

20. A New Phenolic Glycoside from Polygonatum Sibiricum and its α-Glucosidase Inhibitory Activity

Author:
Zi-Yan Chen; Yang Liu; Yu-Qian Zhang; Jin-Hua Huang; Jian-Hua Shao; Ji-Zhou Zhu; Chun-Chao Zhao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 50-52
ISSN:
0009-3130
Subject:
Polygonatum sibiricum; chemistry; glycosides; spectral analysis
Abstract:
... A new phenolic glycoside 1, together with two known compounds (2, 3), has been isolated from the ethanolic extract of Polygonatum sibiricum F. Delaroche. Its structure was elucidated as (2R)-syringylpropane-1,3-diol-1-O-β-D-glucopyranoside by spectroscopic data (¹H NMR, ¹³C NMR, HSQC, HMBC, and HR-ESI-MS) and chemical evidence. In the in vitro assay, compound 1 displayed potent inhibitory activity ...
DOI:
10.1007/s10600-021-03279-0

21. A New Phenolic Glycoside with Aldose Reductase Inhibitory Activity from Eucommia ulmoides

Author:
Lin-Lin Liu; Jia Chen; Yang Liu; Qi-Long Hou; Jian-Hua Shao; Chun-Chao Zhao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 47-49
ISSN:
0009-3130
Subject:
Eucommia ulmoides; alcohols; aldehyde reductase; chemistry; salidroside; spectral analysis
Abstract:
... A new phenolic glycoside 1 and three known compounds (2–4) have been isolated from the 95% ethanolic extract of Eucommia ulmoides Oliv. leaves. Their structures were identified as erythro-1-O-methyl-2-O-β-D-glucopyranosyl-guaiacylglycerol (1), 3,5-dimethoxybenzyl alcohol 4-O-β-D-glucopyranoside (2), salidroside (3), and dihydroconiferin (4) from spectroscopic data (¹H NMR, ¹³C NMR, HSQC, and HMBC) ...
DOI:
10.1007/s10600-021-03278-1

22. A New Prenylated Flavanonol from the Roots of Sophora flavescens

Author:
Ya-Qing Zhang; Fei Zhao; Jian-Xiu Ma; Hong-Yun Gan; Xiao-Feng Xie; Zi-Lin Qiao; Jin Zhao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 20-22
ISSN:
0009-3130
Subject:
Sophora flavescens; chemistry; neoplasm cells; spectral analysis
Abstract:
... A new prenylated flavanonol, (2R,3R)-8-isopentenyl-5-methoxy-7,2′,4′-trihydroxyflavanonol (1) was isolated from the roots of Sophora flavescens. The structure was elucidated on the basis of spectroscopic data. Compound 1 exhibited moderate inhibition towards HeLa, HepG2, and HL-60 tumor cell lines at 14.3, 19.2, 31.5 μg/mL, respectively. ...
DOI:
10.1007/s10600-021-03271-8

23. A New Triterpene Glycoside from Pinus pumila

Author:
Kun Liu; Hua-Yu Liu; Xin Tao; Zi-Jiang Li; Chuan-Ling Si; Hong-Ying Yu; Xiao-Na Yan; Shuangxi Nie; Jun-Hui Wang; Ri-Zheng Cong; Rui Wei; Si-Yao Wang
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 115-119
ISSN:
0009-3130
Subject:
Pinus pumila; liquid chromatography; quercetin; saponins; secondary metabolites; spectral analysis; ursolic acid
Abstract:
... In the current work, a novel triterpene saponin, named ursolic acid 3-O-[α-L-rhamnopyranosyl(1"→6')]-β-D-glucopyranosyl-28-O-β-D-glucuronopyranoside (1), together with two known flavonol glycosides, kaemferol 3-O-α-L-rhamnopyranoside (2) and quercetin 3-O-β-D-glucopyranoside (3), was isolated from the stem outer barks of Pinus pumila by repeated column chromatography and vacuum liquid chromatograp ...
DOI:
10.1007/s10600-021-03294-1

24. A New Ursane-Type Triterpenoid from the Leaves of Rhododendron dauricum with Cytotoxic Activity

Author:
Chao Ye; Mei Jin; Jinfeng Sun; Jiaming Wang; Sainan Li; Wei Zhou; Gao Li
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 327-330
ISSN:
0009-3130
Subject:
Rhododendron; chemistry; cytotoxicity; humans; spectral analysis; triterpenoids
Abstract:
... A new ursane-type triterpenoid, 20-taraxastene-22α-methoxy-3β-ol (1) together with nine known triterpenoids (2–10), was isolated from the leaves of Rhododendron dauricum L. Their structures were established from spectroscopic data (1D, 2D NMR, and HR-ESI-MS) and comparison with reported values. Among the isolates, compounds 1 and 8 were found in the family Ericaceae for the first time, and compoun ...
DOI:
10.1007/s10600-021-03342-w

25. A New ε-Truxillic Acid Derivative from the Leaves of Polygala fallax

Author:
De-Sheng Ning; Gen Li; Lian-Chun Li; Yu-Xia Fu; Zhi-Qi Zou; Zheng-Hong Pan
Source:
Chemistry of natural compounds 2021 v.57 no.3 pp. 459-461
ISSN:
0009-3130
Subject:
Polygala; acids; antioxidant activity; leaves; spectral analysis
Abstract:
... A new ε-truxillic acid derivative (1) and five known compounds (2–6) were isolated from the leaves of Palygala fallax. Their structures were elucidated by detailed spectroscopic analysis and comparison with literature data. All compounds were evaluated for their antiradical activities using in vitro DPPH radical scavenging assay. Compounds 5 and 6 showed moderate radical scavenging activity with E ...
DOI:
10.1007/s10600-021-03387-x

26. A Novel Naphthopyrone-Derived Metabolite from the Marine Crinoid Comanthus bennetti

Author:
Tzu-Chi Lin; Yen-You Lin; Yu-Jen Wu; Zhi-Hong Wen; Jui-Hsin Su
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 91-93
ISSN:
0009-3130
Subject:
carbon; chemistry; metabolites; spectral analysis
Abstract:
... One novel naphthopyrone-derived metabolite, named bennepyrone A (1), was isolated from a marine crinoid Comanthus bennetti. The structure of the compound was elucidated on the basis of its spectroscopic data and comparison with those of comaparvin. Compound 1 possesses a new carbon skeleton that is derived from the naphthopyrone skeleton. ...
DOI:
10.1007/s10600-021-03290-5

27. Angustifoline A, A New Alkaloid from Epilobium angustifolium

Author:
F. C. Meng; L. Q. Deng; X. Guo; G. J. Xiao; Y. B. Jiang; G. W. Wang; Z. H. Liao; M. Chen
Source:
Chemistry of natural compounds 2021 v.57 no.5 pp. 903-906
ISSN:
0009-3130
Subject:
Epilobium angustifolium; alkaloids; chemistry; rhizomes; spectral analysis
Abstract:
... A new alkaloid, angustifoline A (1), was isolated from the rhizome of Epilobium angustifolium L. (Onagraceae). Its structure, including the absolute configurations, were determined by extensive spectroscopic analysis and quantum-chemical calculations. ...
DOI:
10.1007/s10600-021-03507-7

28. Antinociceptive C19-Diterpenoid Alkaloids from Aconitum episcopale

Author:
Jiang Hu; Jiaxun Li; Qiang Li; Xia Mao; Tianfeng Peng; Nianhua Jin; Si Yin; Xiaodong Shi; Yu Li
Source:
Chemistry of natural compounds 2021 v.57 no.3 pp. 503-506
ISSN:
0009-3130
Subject:
Aconitum; acetaminophen; analgesic effect; aspirin; chemistry; ethanol; spectral analysis
Abstract:
... A chemical investigation of the 80% ethanol extract of the roots of Aconitum episcopale led to the isolation of two undescribed C₁₉-diterpenoid alkaloids, designated as episcopines A and B. The structures of the new compounds were elucidated by spectroscopic analysis (NMR, IR, UV, and MS). The isolated alkaloids were tested in vivo for antinociceptive potential. Episcopine A showed a 2-fold more p ...
DOI:
10.1007/s10600-021-03397-9

29. Cycloartane Glycosides from Astragalus falcatus of the Flora of Georgia

Author:
M. D. Alaniya; M. G. Sutiashvili; A. V. Skhirtladze; M. Z. Getiya
Source:
Chemistry of natural compounds 2021 v.57 no.5 pp. 887-890
ISSN:
0009-3130
Subject:
Astragalus falcatus; chemistry; flora; glycosides; spectral analysis; Georgia
Abstract:
... The structures of three cycloartane glycosides isolated from Astragalus falcatus Lam. that were cyclogalegigenin derivatives were elucidated. Compound 1 was cyclogalegigenin-3-O-β-D-(3′-Oacetyl) xylopyranosyl-(2′→1′′)′-O-α-L-rhamnopyranosyl-6-O-β-D-glucopyranoside (cyclofalcoside A); compound 2, cyclogalegigenin-3-O-β-D-(2′-O-acetyl)xylopyranosyl-6-O-β-D-glucopyranoside (cyclofalcoside B), which w ...
DOI:
10.1007/s10600-021-03503-x

30. Design, Synthesis, and Antifungal Activity of Alkyl Gallates Against Plant Pathogenic Fungi In Vitro and In Vivo

Author:
Xiao-Long Zhao; Chun-Qing Li; Xiao-Mei Song; Shuang-Mei Yan; Du-Qiang Luo
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 38-43
ISSN:
0009-3130
Subject:
antifungal properties; chemistry; gallic acid; spectral analysis
Abstract:
... A series of alkyl gallates was synthesized by reacting gallic acid with the corresponding alcohols. Their structures were determined on the basis of spectroscopic data, including NMR and MS. The antifungal activities of these compounds against plant pathogenic fungi in vitro and in vivo were assessed. ...
DOI:
10.1007/s10600-021-03276-3

31. Molecular Structure and Absolute Configuration of Tatridin A and B from Lepidolopha karatavica

Author:
K. M. Turdybekov; O. A. Morozova; S. A. Ivasenko; A. S. Makhmutova; D. M. Turdybekov; S. M. Adekenov
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 83-87
ISSN:
0009-3130
Subject:
crystal structure; quantum mechanics; sesquiterpenoid lactones; spectral analysis
Abstract:
... The germacrane-type sesquiterpene lactones tatridin A and B were isolated for the first time during chemical studies of the extract of Lepidolopha karatavica. The structures of the compounds were elucidated using spectral data and X-ray crystal structure analyses (XSAs). Correlations of the XSAs and CD spectra defined the absolute configurations of the molecules. Possible conformational states of ...
DOI:
10.1007/s10600-021-03288-z

32. New Eremophilenolide from Artemisia sogdiana

Author:
R. F. Mukhamatkhanova; M. G. Levkovich; I. D. Sham’yanov; D. E. Dusmatova; E. O. Terent’eva; Sh. S. Azimova; H. A. Aisa; Sh. Sh. Sagdullaev
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 79-82
ISSN:
0009-3130
Subject:
Artemisia; adenocarcinoma; aerial parts; antineoplastic activity; chemistry; larynx; spectral analysis; uterine cervical neoplasms; Uzbekistan
Abstract:
... A new eremophilenolide that was called sogdianine was isolated from the CHCl₃ fraction of the EtOH extract of the aerial part of Artemisia sogdiana Bunge growing in Uzbekistan. Its structure was elucidated using spectral data (IR, ESI-MS, ¹H, ¹³C, DEPT, and 2D COSY, HMQC, and HMBC). Sogdianine showed moderate antitumor activity in vitro against HeLa cervical cancer and HEp-2 laryngeal adenocarcino ...
DOI:
10.1007/s10600-021-03287-0

33. Phenolic Constituents with their α-Glucosidase Inhibitory Activities from the Leaves of Viburnum melanocarpum

Author:
Yi-Yuan Tang; Zi-Yang Zhao; Jia Chen; Chun-Chao Zhao; Jian-Hua Shao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 56-58
ISSN:
0009-3130
Subject:
Viburnum; chemistry; spectral analysis
Abstract:
... A new compound 1, together with two known compounds (2, 3), has been isolated from the ethanolic extract of Viburnum melanocarpum leaves. Their structures were elucidated by extensive spectroscopic evidence and chemical method. In the in vitro assay, compounds 1 and 3 displayed potent inhibitory activity against α-glucosidase with IC₅₀ values of 6.28 μM and 12.73 μM, respectively. ...
DOI:
10.1007/s10600-021-03281-6

34. Phenolic and Acid Derivatives from Artemisia sieversiana

Author:
Xiang-Wei Xu; Chao-Xi Chen; Ze-Dong Nan; Wen-Bing Sheng; Li-Min Gong; Xu-Dong Zhou
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 250-253
ISSN:
0009-3130
Subject:
Artemisia sieversiana; chemistry; circular dichroism spectroscopy; lignans; spectral analysis
Abstract:
... A new lignan, named sieverlignan C (1), as well as nine known compounds (2–10), were isolated from the leaves and stems of Artemisia sieversiana. The structure of the new lignan was elucidated from detailed spectroscopic analysis, including HR-MS, NMR, and circular dichroism experiments. All the compounds were isolated from the A. sieversiana plant for the first time. ...
DOI:
10.1007/s10600-021-03329-7

35. Polyacetylenes and Flavonoids Isolated from Flowers of Carthamus tinctorius

Author:
Thi Men Ngo; Thi Oanh Vu; Thao Quyen Cao; Byung Sun Min; Jeong Ah Kim
Source:
Chemistry of natural compounds 2021 v.57 no.4 pp. 635-640
ISSN:
0009-3130
Subject:
Carthamus tinctorius; acetylene; anti-allergic agents; enzymatic hydrolysis; esterification; flavonoids; interleukin-2; polyacetylenes; spectral analysis
Abstract:
... A new acetylene, (8S)-deca-4,6-diyne-1,8-di-O-β-D-glucopyranoside (4), and four known polyacetylenes (1–3 and 5), together with nine known flavonoids (6–14), were isolated from the flowers of Carthamus tinctorius L. The structures of the isolates were elucidated by using spectroscopic analysis, mainly 1D and 2D NMR, HR-MS, and comparison with literature data, as well as enzymatic hydrolysis and Mo ...
DOI:
10.1007/s10600-021-03439-2

36. Quinone Derivatives from the Soft Coral Sinularia scabra

Author:
Yu-Hung Lu; Jyun-Jhih Lin; Yu-Jen Wu; Jui-Hsin Su; Mohamed El-Shazly
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 6-8
ISSN:
0009-3130
Subject:
Sinularia; chemistry; corals; quinones; spectral analysis
Abstract:
... One new quinone derivative, 1′,2′-epoxyflexibilisquinone (1), and one known quinone compound, flexibilisquinone (2), were isolated from the wild-type soft coral Sinularia scabra. The structures of both compounds 1 and 2 were established by 1D and 2D NMR spectroscopic data analysis and comparison with the reported data. ...
DOI:
10.1007/s10600-021-03267-4

37. Two New 5-Oxomilbemycins Possessing an Unusual 3,27-Epoxy Bond from the Genetically Engineered Strain Streptomyces bingchenggensis BCJ60

Author:
Zhi-Kui Hao; Jian-Song Li; Ji-Dong Wang; Wen-Sheng Xiang; Hai-Yan Wang
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 289-292
ISSN:
0009-3130
Subject:
Bursaphelenchus xylophilus; Streptomyces; Tetranychus cinnabarinus; chemistry; genetically engineered microorganisms; spectral analysis
Abstract:
... Two undescribed milbemycin derivatives, milbemycin P (1) and milbemycin Q (2), were isolated from a culture of the genetically engineered strain Streptomyces bingchenggensis BCJ60. Their structures were elucidated through the interpretation of NMR and HR-ESI-MS spectroscopic data, as well as comparison with previous reports. Their acaricidal and nematocidal activities against Tetranychus cinnabari ...
DOI:
10.1007/s10600-021-03339-5

38. Two New Aporphine Alkaloids from Amoora cucullata and their Antibacterial Activity

Author:
Parinuch Chumkaew; Passakorn Teerapongpisan; Jaraslak Pechwang
Source:
Chemistry of natural compounds 2021 v.57 no.5 pp. 907-910
ISSN:
0009-3130
Subject:
Aglaia; Bacillus subtilis; Staphylococcus aureus; antibacterial properties; chemistry; spectral analysis
Abstract:
... Two new aporphine alkaloids, amocurines D and E (1 and 2), together with five known compounds (3–7), were isolated from the stems of Amoora cucullata. The structures of these compounds were elucidated based on their spectroscopic data. Compound 1 showed significant activities against Staphylococcus aureus (ATCC25923) and Bacillus subtilis (ATCC6633) with MIC value of 3.1 μg/mL, whereas 2 exhibited ...
DOI:
10.1007/s10600-021-03508-6

39. Two New Benzazepine Alkaloids from Thalictrum wangii and their Anti-Rotavirus Activity

Author:
Fang Wu; Lu Liu; Ya-Ning Zhu; Na Lv; Dian Luo; Li-Jun Zhu; Miao Dong; Min Zhou; Wei-Guang Wang; Qiu-Fen Hu; Zhi-Gang Li
Source:
Chemistry of natural compounds 2021 v.57 no.2 pp. 339-342
ISSN:
0009-3130
Subject:
Thalictrum; alkaloids; chemistry; exhibitions; planting; spectral analysis; testing
Abstract:
... Two new benzazepine alkaloids (1 and 2) were isolated from the whole plants of Thalictrum wangii. Their structures were determined by means of HR-ESI-MS and extensive 1D and 2D NMR spectroscopic studies. Compounds 1 and 2 were tested for their anti-rotavirus activity. The results revealed that compounds 1 and 2 exhibited potent anti-rotavirus activity with TI values of 17.9 and 17.6, respectively. ...
DOI:
10.1007/s10600-021-03346-6

40. Two New Coumarins from the Aerial Part of Gendarussa vulgaris

Author:
Yan-jun Sun; Chen Zhao; Rui-jie Han; Hao-jie Chen; Hui Chen; Meng Li; Wei-sheng Feng
Source:
Chemistry of natural compounds 2021 v.57 no.4 pp. 631-634
ISSN:
0009-3130
Subject:
Justicia gendarussa; adsorption; aerial parts; coumarins; gel chromatography; porous media; solvents; spectral analysis
Abstract:
... Two new coumarins, genglycoside G (1) and gencoumarin A (2), were isolated from the aerial part of Gendarussa vulgaris by systematic solvent extraction, macroporous adsorption resin AB-8, and silica gel column chromatography. Their structures were unambiguously established on the basis of extensive spectroscopic data (UV, IR, HR-ESI-MS, ¹H NMR, ¹³C NMR, HSQC, HMBC), and HPLC analysis. ...
DOI:
10.1007/s10600-021-03438-3

41. Two New Depsidones from Parmelia saxatilis

Author:
Xigurigan; Tunuomula; Haliga; Shu Zhen Bai; Ganchimeg; Qirigeer; Li Guo Yang; Laxinamujila Bai
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 63-65
ISSN:
0009-3130
Subject:
Parmelia; chemistry; dibenzofuran; spectral analysis; usnic acid
Abstract:
... Two new depsidones, diffractione B (1) and salazinin A (2), and two known compounds, the dibenzofuran derivative usnic acid (3) and depsidone salazinic acid (4), were isolated from Parmelia saxatilis. The structures of the isolated compounds were identified by spectral analysis and comparison with literature data. ...
DOI:
10.1007/s10600-021-03283-4

42. Two New Lignans from the Fresh Bark of Ailanthus altissima

Author:
Tian-Hui Zhu; Yu-Fang Wang; Tao Jiang; Li-Kang Zhao; He Mi; Yan-Nan Ji; Francoise Sauriol; Yi-Bing Wu; Yu-Cheng Gu; Mei Dong; Zhi-Yu Ni
Source:
Chemistry of natural compounds 2021 v.57 no.3 pp. 422-424
ISSN:
0009-3130
Subject:
Ailanthus altissima; bark; chemistry; lignans; mass spectrometry; spectral analysis
Abstract:
... Two new lignans (1, 2) were isolated from the fresh bark of Ailanthus altissima. The structures were elucidated on the basis of spectroscopic analysis, including 1D and 2D NMR techniques and high-resolution mass spectrometry. ...
DOI:
10.1007/s10600-021-03379-x

43. Two New Phloroglucinol Derivatives from Syzygium brachyantherum

Author:
Wen Xu; Shao-Hua Xu; Yi-Kao Hu; Jing-Ping Liu; Ji-Hua Wang; Yan Zhao; Yong Zhao
Source:
Chemistry of natural compounds 2021 v.57 no.1 pp. 66-68
ISSN:
0009-3130
Subject:
Syzygium; chemistry; spectral analysis
Abstract:
... Two new phloroglucinol derivatives were isolated from the twigs and leaves of Syzygium brachyantherum. Their structures were elucidated based on extensive spectroscopic data. They exhibited weak inhibitory activities against α-glucosidase and PTP1B. ...
DOI:
10.1007/s10600-021-03284-3

44. A New 26-Norlanostanoid from the Fruiting Bodies of Ganoderma philippii

Author:
Qing-Yun Ma; Shuang Yang; Fan-Dong Kong; Qing-Yi Xie; Li-Man Zhou; Zhi-Fang Yu; You-Xing Zhao
Source:
Chemistry of natural compounds 2020 v.56 no.1 pp. 89-91
ISSN:
0009-3130
Subject:
Ganoderma; alpha-glucosidase; chemical structure; enzyme inhibition; ethyl acetate; fruiting bodies; inhibitory concentration 50; spectral analysis; spectroscopy
Abstract:
... A new nortriterpenoid, 26-nor-11,22-dioxolanost-8-en-3β,7β,15α-triol (1), was isolated from the EtOAc extract of the fruiting bodies of Ganoderma philippii. Its structure was identified by spectroscopic techniques including 1D and 2D spectral data as well as MS. Compound 1 showed α-glucosidase inhibitory activity with IC₅₀ value of 482.7 μM. ...
DOI:
10.1007/s10600-020-02950-2

45. A New Antibacterial Chlorinated Amino Acid Derivative from the Sponge-Derived Fungus Aspergillus sp. LS53

Author:
Lu Zhang; Panpan Qiu; Lijian Ding; Qiang Li; Jingjing Song; Zhiwen Han; Shan He
Source:
Chemistry of natural compounds 2020 v.56 no.1 pp. 109-111
ISSN:
0009-3130
Subject:
Aspergillus; Vibrio harveyi; amino acids; antibacterial properties; chemical structure; fungi; minimum inhibitory concentration; spectral analysis
Abstract:
... A new chlorinated amino acid derivative with a rare 3-chloro-4-hydroxyphenyl unit named aspergamide A (1), along with three known compounds, xylarinol A (2), nectriapyrone (3), and asperisocoumarin A (4), were isolated from the sponge-derived fungus Aspergillus sp. LS53. Their structures were determined by combining detailed spectroscopic analysis and literature data. Compounds 1, 3, and 4 showed ...
DOI:
10.1007/s10600-020-02955-x

46. A New Anticancer Bisflavan-3-Ol from Boerhavia elegans

Author:
Najeeb Ur Rehman; Hidayat Hussain; Husain Yar Khan; Ghulam Abbas; Hidayatullah; Ahmed Al-Harrasi
Source:
Chemistry of natural compounds 2020 v.56 no.2 pp. 235-238
ISSN:
0009-3130
Subject:
2,2-diphenyl-1-picrylhydrazyl; Boerhavia elegans; acetylcholinesterase; alpha-glucosidase; antineoplastic activity; antioxidant activity; breast neoplasms; carbon; cell viability; electrospray ionization mass spectrometry; enzyme inhibition; inhibitory concentration 50; neoplasm cells; nuclear magnetic resonance spectroscopy; spectral analysis; stable isotopes; urease; xanthine oxidase
Abstract:
... A new a bisflavan-3-ol, boerhavianane (1), was isolated from Boerhavia elegans L. The structure of the flavanol dimer was elucidated by detailed spectroscopic analysis including ¹H, ¹³C NMR, COSY, HMQC, HMBC, and ESI-MS. Boerhavianane (1) was evaluated for its anticancer activity and demonstrated a significant reduction in the viability of breast cancer cells in a concentration-dependent manner wi ...
DOI:
10.1007/s10600-020-02995-3

47. A New Chromene Derivative from Alternaria sp. ZG22

Author:
Xin-Ming Song; Juan-Juan Luo; Ya-Ling Li; Li-Bing Huang; Cai-Cui Chen; Zi-Wei Ma; Bing Chen; Xue-Ming Zhou; Xiao-Ping Song; Chang-Ri Han
Source:
Chemistry of natural compounds 2020 v.56 no.3 pp. 409-411
ISSN:
0009-3130
Subject:
Alternaria; antibacterial properties; chemistry; spectral analysis; China
Abstract:
... A new chromene derivative, alternapyran (1), along with three known compounds (2–4), was isolated from the Alternaria sp. ZG22 obtained from a Dasymaschalon rostratum collected from the Hainan. The structure of the new compound 1 was elucidated by NMR and mass spectroscopic data. Compounds 2 and 3 showed broad spectrum antibacterial activity against four terrestrial pathogenic bacteria. ...
DOI:
10.1007/s10600-020-03049-4

48. A New Compound from Polygonum amplexicaule var. sinense

Author:
Guang-ming Xu; Fan Zhao; Fang Liu; Zhi-ying Yuan; Bi-qing Zhao; Li Li; Jia Cai; Ling-xi Li; Wei-he He; Xiao-jiang Zhou
Source:
Chemistry of natural compounds 2020 v.56 no.6 pp. 1068-1071
ISSN:
0009-3130
Subject:
Bistorta amplexicaulis; human cell lines; propane; spectral analysis
Abstract:
... One new phenyl group dimeric compound, named polygamol A (1), together with two known compounds, 2,2-bis[4-(2,3-dihydroxypropoxy)phenyl]propane (2) and 1,3-di-O-[2′,2′-di-(p-phenylene)isopropylidene]-glycerol (3), were isolated from the roots of Polygonum amplexicaule var. sinense. The structures of these compounds were elucidated based on spectroscopic analysis. The new compound exhibited weak ac ...
DOI:
10.1007/s10600-020-03228-3

49. A New Coumarin from the Bark of Cryptocarya bracteolata

Author:
Nurdin Saidi; Khalijah Awang; Mustanir Yahya
Source:
Chemistry of natural compounds 2020 v.56 no.5 pp. 803-805
ISSN:
0009-3130
Subject:
Cryptocarya; bark; chemistry; coumarin; spectral analysis
Abstract:
... Isolation of compounds from the bark of Cryptocarya bracteolata yielded a new coumarin, 6,7,8-trimethoxy-3,4-dihydrocoumarin. The structure of the compound was elucidated from spectral data, including IR, UV, 1D NMR (¹³C, ¹H, and DEPT), 2D NMR (HMQC, HMBC, and COSY), EI-MS, and ESI-MS techniques. ...
DOI:
10.1007/s10600-020-03156-2

50. A New Diarylheptanoid from the Twigs of Quercus Acutissima and their Neuroprotective Activity

Author:
Joon Min Cha; Lalita Subedi; Zahra Khan; Sun Yeou Kim; Kang Ro Lee
Source:
Chemistry of natural compounds 2020 v.56 no.2 pp. 213-216
ISSN:
0009-3130
Subject:
Quercus acutissima; acid hydrolysis; branches; carbon; glycosides; neuroprotective effect; nuclear magnetic resonance spectroscopy; secretion; spectral analysis; stable isotopes
Abstract:
... A new diarylheptanoid glycoside, acutissioside A (4), along with five known diarylheptanoids (1–3, 5, 6) was isolated from the twigs of Quercus acutissima Carruth. The structure of the new compound was determined via spectral analysis, including NMR spectra (¹H and ¹³C NMR, ¹H–¹H COSY, HSQC, HMBC) and HR-ESI-MS, acid hydrolysis, and specific optical rotation data. The neuroprotective effect of all ...
DOI:
10.1007/s10600-020-02990-8