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You searched for: Subject glucosides Remove constraint Subject: glucosides Subject spectral analysis Remove constraint Subject: spectral analysis Subject lignans Remove constraint Subject: lignans Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Bioactive norlignan glucosides from Curculigo capitulata

Author:
Chang, W.L.; Su, M.J.; Lee, S.S.
Source:
Journal of natural products 1997 v.60 no.2 pp. 76-80
ISSN:
0163-3864
Subject:
Curculigo; medicinal plants; rhizomes; lignans; glucosides; spectral analysis; chemical structure; epinephrine; heart rate; medicinal properties; chemical constituents of plants; Taiwan
DOI:
10.1021/np9604902

2. Three novel constituents from Curculigo capitulata and revision of C-2 stereochemistry in nyasicoside

Author:
Chang, W.L.; Chen, C.H.; Lee, S.S.
Source:
Journal of natural products 1999 v.62 no.5 pp. 734-739
ISSN:
0163-3864
Subject:
Curculigo; rhizomes; glucosides; lignans; chemical structure; stereochemistry; chemical constituents of plants; nuclear magnetic resonance spectroscopy; spectral analysis; Taiwan
DOI:
10.1021/np980364t

3. Biosynthetic pathway to the cancer chemopreventive secoisolariciresinol diglucoside-hydroxymethl glutaryl ester-linked lignan oligomers in flax (Linum usitatissimum) seed. [Erratum: May 2002, v. 65 (5), p. 800.]

Author:
Ford, J.D.; Huang, K.S.; Wang, H.B.; Davin, L.B.; Lewis, N.G.
Source:
Journal of natural products 2001 v.64 no.11 pp. 1388-1397
ISSN:
0163-3864
Subject:
Linum usitatissimum; seeds; resinols; glucosides; lignans; glutaric acid; spectral analysis; chemical structure; antineoplastic agents; biosynthesis; chemical reactions; biochemical pathways; chemical constituents of plants
DOI:
10.1021/np010367x

4. Sesquiterpenoids and Cytotoxic Lignans from the Bark of Libocedrus chevalieri

Author:
Zhang, Y.J.; Litaudon, M.; Bousserouel, H.; Martin, M.T.; Thoison, O.; Léonce, S.; Dumontet, V.; Sévenet, T.; Guéritte, F.
Source:
Journal of natural products 2007 v.70 no.8 pp. 1368-1370
ISSN:
0163-3864
Subject:
sesquiterpenoids; Libocedrus; humans; cytotoxicity; anticarcinogenic activity; glucosides; lignans; diterpenoids; spectral analysis; cultured cells; chemical structure; New Caledonia
DOI:
10.1021/np070124q
PubMed:
17676899

5. Absolute configuration of (+)-pinoresinol 4-O-[6"-O-galloyl]-β-d-glucopyranoside, macarangiosides E, and F isolated from the leaves of Macaranga tanarius

Author:
Matsunami, Katsuyoshi; Otsuka, Hideaki; Kondo, Kazunari; Shinzato, Takakazu; Kawahata, Masatoshi; Yamaguchi, Kentaro; Takeda, Yoshio
Source:
Phytochemistry 2009 v.70 no.10 pp. 1277-1285
ISSN:
0031-9422
Subject:
Macaranga tanarius; lignans; glucosides; chemical constituents of plants; chemical structure; spectral analysis; stereochemistry; antioxidant activity; Japan
Abstract:
... A lignan glucoside, (+)-pinoresinol 4-O-[6"-O-galloyl]-β-d-glucopyranoside (1), and two megastigmane glucosides, named macarangiosides E and F (2, 3), together with 15 known compounds (4-18) were isolated from leaves of Macaranga tanarius (L.) Müll.-Arg. (Euphorbiaceae). Their structures were elucidated by spectroscopic and chemical analyses. In addition, the absolute stereochemistry of macarangi ...
DOI:
10.1016/j.phytochem.2009.07.020

6. Lignan and neolignan glucosides, and tachioside 2′-O-4″-O-methylgallate from the leaves of Glochidion rubrum

Author:
Wen-Hu Cai; Katsuyoshi Matsunami; Hideaki Otsuka; Takakazu Shinzato; Yoshio Takeda
Source:
Natural medicines 2009 v.63 no.4 pp. 408-414
ISSN:
1340-3443
Subject:
Glochidion; glucosides; lignans; spectral analysis
Abstract:
... Thirteen compounds (1–13) were isolated from a MeOH extract of leaves of Glochidion rubrum. The structures of four new compounds were elucidated to be (−)-isolariciresinol 2a-O-β-D-glucopyranoside (1), (7R,8S)- and (7R,8R)-4,7,9,9′-tetrahydroxy-3,3′-dimethoxy-8-O-4′-neolignan 7-O-β-D-glucopyranosides (2 and 3, respectively), and tachioside 2′-O-4″-O-methylgallate (4) on detailed inspection of one- ...
DOI:
10.1007/s11418-009-0344-6

7. New lignan glucosides with tyrosinase inhibitory activities from exocarp of Castanea henryi

Author:
Bin Wu; Xingde Zhang; Xiaodan Wu
Source:
Carbohydrate research 2012 v.355 no. pp. 45-49
ISSN:
0008-6215
Subject:
Castanea; exocarp; glucosides; in vitro studies; lignans; mushrooms; spectral analysis
Abstract:
... Three novel lignan glycosides, 1-[4-(β-glucopyranosyl (1→2)-[β-glucopyranosyl (1→6)]-β-glucopyranosyloxy)-3-methoxyphenyl]-2-[4-(3-hydroxypropyl)-2-methoxyphenoxy]-1,3-propanediol (1), 2,3-dihydro-2-[4-(β-glucopyranosyl (1→2)-[β-glucopyranosyl (1→6)]-β-glucopyranosyloxy)-3-methoxyphenyl]-3-(hydroxymethyl)-7-methoxy-5-benzofuranpropanol (2), 7-hydroxy-9′-β-glucopyranosyloxyl secoisolariciresinol (3 ...
DOI:
10.1016/j.carres.2012.04.009

8. Iridoid Glucosides from Turkish Phlomis tuberosa

Author:
Ihsan Calis; Hasan Kirmizibekmez; Tayfun Ersoz; Ali A. Dönmez; Charlotte H. Gotfredsen; Søren R. Jensen
Source:
Zeitschrift für Naturforschung 2014 v.60 no.12 pp. 1295-1298
ISSN:
0932-0776
Subject:
Phlomis tuberosa; aerial parts; alcohols; glucosides; iridoid glycosides; lignans; luteolin; spectral analysis; verbascoside
Abstract:
... From the aerial parts of Phlomis tuberosa a new iridoid glucoside, chlorotuberoside was isolated together with five known iridoid glucosides, lamalbide, shanzhiside methyl ester, 7-epi-phlomiol (= phloyoside I), sesamoside and 5-deoxysesamoside. Two known phenylethanoid glycosides, forsythoside B, and decaffeoylacteoside, three known neolignan glycosides, dehydrodiconiferyl alcohol 9’-O-β -D-gluco ...
DOI:
10.1515/znb-2005-1214

9. Neolignan Glucosides From Phlomis Chimerae Boiss

Author:
Tayfun Ersöz; İclal Saracoğlu; Deniz Taşdemir; Hasan Kırmızıbekmez; Ali A. Dönmez; Chris M. Ireland; İhsan Çalış
Source:
Zeitschrift für Naturforschung 2014 v.57 no.3-4 pp. 221-225
ISSN:
1865-7125
Subject:
Phlomis; aerial parts; glucosides; lignans; spectral analysis
Abstract:
... From the aerial parts of the plant Phlomis chimerae, a new neolignan glucoside, (-)-4-O-methyldihydrodehydrodiconiferyl alcohol-9′-O-β-ᴅ-glucopyranoside (1) was characterized along with the known neolignan glucosides, (D)-4-O-methyldehydrodiconiferyl alcohol-9′-O-β-ᴅ-glucopyranoside (= longifloroside A) (2) and (-)-dihydrodehydrodiconiferyl alcohol-9-O-β-ᴅ-glucopyranoside (3). The structure of the ...
DOI:
10.1515/znc-2002-3-404

10. 5-Methyl ether flavone glucosides from the leaves of Bruguiera gymnorrhiza

Author:
Acharawan Panyadee; Poolsak Sahakitpichan; Somsak Ruchirawat; Tripetch Kanchanapoom
Source:
Phytochemistry letters 2015 v.11 pp. 215-219
ISSN:
1874-3900
Subject:
Bruguiera gymnorhiza; Cotoneaster; glucosides; kaempferol; leaves; lignans; luteolin; myricetin; nuclear magnetic resonance spectroscopy; quercetin; rutin; spectral analysis
Abstract:
... Two new 5-methyl ether flavone glucosides (7,4′,5′-trihydroxy-5,3′-dimethoxyflavone 7-O-β-D-glucopyranoside and 7,4′-dihydroxy-5-methoxyflavone 7-O-β-D-glucopyranoside) were isolated from the leaves of Thai mangrove Bruguiera gymnorrhiza together with 7,3′,4′,5′-tetrahydroxy-5-methoxyflavone, 7,4′,5′-trihydroxy-5,3′-dimethoxyflavone, luteolin 5-methyl ether 7-O-β-D-glucopyranoside, 7,4′-dihydroxy- ...
DOI:
10.1016/j.phytol.2014.12.021

11. Furofuran Lignan Glucosides with Estrogen-Inhibitory Properties from the Bangladeshi Medicinal Plant Terminalia citrina

Author:
Muhit Md. Abdul; Umehara Kaoru; Mori-Yasumoto Kanami; Noguchi Hiroshi
Source:
Journal of natural products 2016 v.79 no.5 pp. 1298-1307
ISSN:
1520-6025
Subject:
Terminalia; breast neoplasms; cell proliferation; glucosides; humans; leaves; lignans; medicinal plants; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Extracts from the leaves of the Bangladeshi medicinal plant Terminalia citrina were prepared, and 13 new furofuran lignan glucosides, terminalosides A–K (1–4, 6–12), 2-epiterminaloside D (5), and 6-epiterminaloside K (13), were characterized using various spectroscopic techniques. Twelve of the isolates were found to contain rare tetraoxygenated aryl groups in their structures. Analysis of the NMR ...
DOI:
10.1021/acs.jnatprod.5b01042

12. Antioxidant and cytotoxic lignans from the roots of Bupleurum chinense

Author:
Dan-Qi Li; Di Wang; Le Zhou; Ling-Zhi Li; Qing-Bo Liu; Ying-Ying Wu; Jing-Yu Yang; Shao-Jiang Song; Chun-Fu Wu
Source:
Journal of Asian natural products research 2017 v.19 no.5 pp. 519-527
ISSN:
1477-2213
Subject:
2,2-diphenyl-1-picrylhydrazyl; Bupleurum chinense; antioxidant activity; bioactive compounds; cytotoxicity; ethanol; fluorouracil; free radical scavengers; glucosides; inhibitory concentration 50; lignans; neoplasm cells; nuclear magnetic resonance spectroscopy; roots; spectral analysis
Abstract:
... In the search for biologically active compounds from the roots of Bupleurum chinense D C., phytochemical investigation of its ethanol extract led to the isolation and identification of a new 8- O -4′ neolignan glucoside, saikolignanoside A (1), along with eight known lignans (2–9). Their structures were determined on the basis of IR, UV, HRESIMS, and NMR spectroscopic analyses. The antioxidant and ...
DOI:
10.1080/10286020.2016.1234456

13. Furofuran lignan glucosides from the leaves of Vitex negundo var. cannabifolia

Author:
Yue-Ting Li; Man-Man Li; Jing Sun; Zhi-Xiang Zhu; Yue-Lin Song; Dao-Ran Pang; Jiao Zheng; Yun-Fang Zhao; Peng-Fei Tu; Jun Li
Source:
Natural product research 2017 v.31 no.8 pp. 918-924
ISSN:
1478-6427
Subject:
Vitex negundo; glucosides; inhibitory concentration 50; leaves; lignans; nitric oxide; spectral analysis; spectroscopy
Abstract:
... Two new furofuran lignan glucosides, cannabilignin (1) and isocannabilignin (2), together with four known compounds (3 – 6), were isolated from the leaves of Vitex negundo var. cannabifolia . The structures of the isolates were elucidated by analysis of spectroscopic data. Compound 3 exhibited weak inhibition of nitric oxide production in lipopolysaccharide-stimulated BV-2 microglial cells with IC ...
DOI:
10.1080/14786419.2016.1255887

14. Neolignan and megastigmane glucosides from the aerial parts of Isodon japonicus with cell protective effects on BaP-induced cytotoxicity

Author:
Takahiro Matsumoto; Seikou Nakamura; Souichi Nakashima; Tomoe Ohta; Keiko Ogawa; Masashi Fukaya; Junko Tsukioka; Tomohiro Hasei; Tetsushi Watanabe; Hisashi Matsuda
Source:
Phytochemistry 2017 v.137 pp. 101-108
ISSN:
0031-9422
Subject:
aerial parts; chemical structure; cytotoxicity; glucosides; lignans; nuclear magnetic resonance spectroscopy; protective effect; spectral analysis; Japan
Abstract:
... Six neolignan glucosides, named isodonosides I–VI, and a megastigmane glucoside named isodonmegastigmane I, were isolated together with 15 known compounds from the methanolic extract of aerial parts of Isodon japonicus cultivated in Tokushima, Japan. The chemical structures of the compounds were elucidated based on their MS and NMR spectroscopic analysis. The absolute configurations of the neolign ...
DOI:
10.1016/j.phytochem.2017.02.007

15. A New Insecticidal Lignan Glucoside from Galium verum

Author:
Jia Chen; Chun-Chao Zhao; Jian-Hua Shao; Ju-Di Fan; Xu-Hua Huang
Source:
Chemistry of natural compounds 2017 v.53 no.4 pp. 626-628
ISSN:
0009-3130
Subject:
Galium verum; Helicoverpa armigera; Scorpiones; chemical structure; glucosides; insecticidal properties; lignans; mortality; poisoning; scorpion venoms; spectral analysis; stomach; toxicity
Abstract:
... A new lignan glucoside, galiveroside A (1), and seven known compounds (2–8), were isolated from Galium verum L. The structure of 1 was elucidated on the basis of extensive spectroscopic analyses. Compound 1, at the concentration of 5 mg/mL, showed insecticide activity to 3 age cotton bollworm with a mortality of 16.3% through stomach poisoning. When combined with a recombinant scorpion toxin rLqh ...
DOI:
10.1007/s10600-017-2075-3

16. A New Lignan Glucoside from Cyclea racemosa

Author:
Jian-Hua Shao; Xue-Wei Zhang; Zi-Ling Dong; Si-Hui Li; Ben-Jie Miao; Ke-Zhi Cheng
Source:
Chemistry of natural compounds 2017 v.53 no.6 pp. 1025-1027
ISSN:
0009-3130
Subject:
Cyclea; chemical structure; glucosides; lignans; spectral analysis
Abstract:
... A new lignan glucoside 1, along with two known lignans (2, 3), was isolated from Cyclea racemosa Oliv. Its structure was elucidated as (+)-7′-methoxylariciresinol 4-O-β-D-glucopyranoside on the basis of extensive spectroscopic analyses. ...
DOI:
10.1007/s10600-017-2193-y

17. Nine new compounds from the root bark of Lycium chinense and their α-glucosidase inhibitory activity

Author:
Ya-Nan Yang; Ya-Wen An; Zhi-Lai Zhan; Jing Xie; Jian-Shuang Jiang; Zi-Ming Feng; Fei Ye; Pei-Cheng Zhang
Source:
RSC advances 2017 v.7 no.2 pp. 805-812
ISSN:
2046-2069
Subject:
Lycium chinense; acarbose; alpha-glucosidase; bark; cortex; enzyme inhibition; enzyme inhibitors; fruits; glucosides; inhibitory concentration 50; lignans; naphthalene; nuclear magnetic resonance spectroscopy; sesquiterpenoids; shrubs; spectral analysis
Abstract:
... Lycium chinense Mill. is a deciduous shrub in the Solanaceae family that is known for its fruits (Lycii fructus) and root bark (Lycii cortex). In our ongoing search for α-glucosidase inhibitors from the root bark of L. chinense, lyciumflavane A, one new flavane with an unusual benzofuran unit, one new amide possessing a naphthalene skeleton, one new sesquiterpene, three new lignan glucosides, and ...
DOI:
10.1039/c6ra24751b

18. Specialized metabolites from the aerial parts of Centaurea polyclada DC.

Author:
Serdar Demir; Canan Karaalp; Erdal Bedir
Source:
Phytochemistry 2017 v.143 pp. 12-18
ISSN:
0031-9422
Subject:
Centaurea; aerial parts; chemical degradation; flavonoids; flora; glucosides; lignans; mass spectrometry; metabolites; nuclear magnetic resonance spectroscopy; sesquiterpenoid lactones; spectral analysis; Turkey (country)
Abstract:
... The genus Centaurea L. (Asteraceae) is represented by 200 taxa in the flora of Turkey and several Centaurea species are used as herbal remedies against different conditions. Previous phytochemical investigations on this genus generally revealed the isolation of sesquiterpene lactones and flavonoid derivatives. In our continuous search on Centaurea genus, a phytochemical study was performed on Cent ...
DOI:
10.1016/j.phytochem.2017.07.002

19. Two new lignan-iridoid glucoside diesters from the leaves of Vaccinium bracteatum and their relative and absolute configuration determination by DFT NMR and TDDFT-ECD calculation

Author:
Yong-Mei Ren; Chang-Qiang Ke; Attila Mándi; Tibor Kurtán; Chunping Tang; Sheng Yao; Yang Ye
Source:
Tetrahedron 2017 pp. -
ISSN:
0040-4020
Subject:
Vaccinium bracteatum; biochemical pathways; chemical reactions; chemical structure; circular dichroism spectroscopy; glucosides; iridoids; leaves; lignans; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Two new lignan-iridoid glucoside diesters (2 and 3), together with their putative biosynthetic precursor 10-O-trans-caffeoyl-6α-hydroxyl-dihydromonotropein (1), were characterized from the leaves of Vaccinium bracteatum. Their planar structures and relative configuration were elucidated by spectroscopic measurements and DFT C NMR calculations, and their absolute configurations were determined by t ...
DOI:
10.1016/j.tet.2017.04.040

20. Benzoxazinoid and indoxyl glycosides from Wrightia religiosa

Author:
Poolsak Sahakitpichan; Nitirat Chimnoi; Chutima Srinroch; Somsak Ruchirawat; Tripetch Kanchanapoom
Source:
Phytochemistry letters 2018 v.26 pp. 30-32
ISSN:
1874-3900
Subject:
Wrightia; flavonols; glucosides; lignans; nuclear magnetic resonance spectroscopy; secondary metabolites; spectral analysis
Abstract:
... A new class of secondary metabolites of the family Apocynaceae, benzoxazinoid, was reported for the first time from Wrightia religiosa. A new benzoxazinoid glycoside, (2S)-2-O-β-d-glucopyranosyl-2H-1,4-benzoxazin-3(4H)-one (2) and a new indole diglycoside, indoxyl 3-O-β-d-apiofuranosyl-(1 → 6)-β-d-glucopyranoside (4) were isolated, together with twelve known compounds, including benzoxazinoid glyc ...
DOI:
10.1016/j.phytol.2018.05.012

21. α-Keto tetrahydrofuran lignan glucosides from the Bangladeshi medicinal plant Terminalia citrina inhibit estradiol (E2) induced proliferation in cancer cells

Author:
Md. Abdul Muhit; Kaoru Umehara; Hiroshi Noguchi
Source:
Phytochemistry 2018 v.145 pp. 161-167
ISSN:
0031-9422
Subject:
Terminalia citrina; breast neoplasms; cell proliferation; estradiol; estrogenic properties; ethyl acetate; glucosides; human cell lines; leaves; lignans; medicinal plants; moieties; neoplasm cells; nuclear magnetic resonance spectroscopy; spectral analysis; stereochemistry; tetrahydrofuran; Bangladesh
Abstract:
... EtOAc extract from the leaves of Terminalia citrina collected in Bangladesh were separated, and seven previously undescribed α-keto tetrahydrofuran lignan glucosides (terminalosides Q to W) were isolated and characterized. NOESY analysis of ¹H NMR spectra and ECD spectroscopic data analysis revealed the absolute stereochemistry of the tetrahydrofuran ring of the isolated constituents as being a (7 ...
DOI:
10.1016/j.phytochem.2017.10.011

22. A New Neolignan Glucoside from the Stems of “Baekma” Cultivar, Chrysanthemum morifolium

Author:
Hyoung-Geun Kim; Hyun-Ji Oh; Jung-Hwan Ko; Sun-Woo Joo; Yeong-Geun Lee; Yun-Su Baek; Dae Young Lee; Nam-In Baek
Source:
Chemistry of natural compounds 2019 v.55 no.4 pp. 610-613
ISSN:
0009-3130
Subject:
Chrysanthemum morifolium; chemical structure; cultivars; glucosides; lignans; nuclear magnetic resonance spectroscopy; silica gel; spectral analysis; stems
Abstract:
... A new neolignan glucoside has been isolated from Chrysanthemum morifolium ‘Baekma’ cultivar through repeated silica gel and octadecyl silica gel (ODS) column chromatographies. On the basis of spectroscopic data including NMR, MS, and IR, the chemical structure of the new neolignan glucoside was determined to be (7S,8S)-7-O-[1′-(4′,5′-dihydroxy-3′-methoxyphenyl)propanol]guaiacylglycerol 4-O-β-D-glu ...
DOI:
10.1007/s10600-019-02760-1

23. Chemical Constituents of the Leaves of Campanula takesimana (Korean Bellflower) and Their Inhibitory Effects on LPS-induced PGE2 Production

Author:
Yutong Qi; Se-In Choi; So-Ri Son; Hee-Soo Han; Hye Shin Ahn; Yu-Kyong Shin; Sun Hee Lee; Kyung-Tae Lee; Hak Cheol Kwon; Dae Sik Jang
Source:
Plants 2020 v.9 no.9 pp. -
ISSN:
2223-7747
Subject:
Campanula takesimana; Oriental traditional medicine; anti-inflammatory activity; chemical composition; chromatography; ferulic acid; glucosides; herbal medicines; herbs; kaempferol; leaves; lignans; lipopolysaccharides; nuclear magnetic resonance spectroscopy; prostaglandins; quercetin; spectral analysis; Korean Peninsula
Abstract:
... Campanula takesimana Nakai (Campanulaceae; Korean bellflower) is one of the endemic herbs of Korea. The plant has been used as traditional medicines for treating asthma, tonsillitis, and sore throat in Korea. A hot water extract of the leaves of C. takesimana exhibited a significant inhibitory effect on lipopolysaccharide (LPS)-stimulated prostaglandin E₂ (PGE₂) production. Repetitive chromatograp ...
DOI:
10.3390/plants9091232

24. Chemical constituents from Phlomis bovei Noë and their chemotaxonomic significance

Author:
Walid Khitri; Dalila Smati; Anne-Claire Mitaine-Offer; Thomas Paululat; Marie-Aleth Lacaille-Dubois
Source:
Biochemical systematics and ecology 2020 v.91 pp. 104054
ISSN:
0305-1978
Subject:
Phlomis; carbon; chemical composition; chemotaxonomy; glucosides; iridoids; leaves; lignans; mass spectrometry; metabolites; norisoprenoids; nuclear magnetic resonance spectroscopy; phenylpropanoids; phytochemicals; roots; spectral analysis; stable isotopes
Abstract:
... A phytochemical investigation of the leaves and roots of Phlomis bovei Noë (Lamiaceae) led to the isolation of sixteen compounds, including iridoids (1, 2, 3), megastigmanes (4, 5), phenylpropanoids (6, 7, 8, 9, 10), lignans (11, 12, 13, 14), a nortriterpene (15), and a phenyl glucoside (16). Compounds (1, 2, 4, 5, 6, 10) were obtained from the leaves and compounds (1, 2, 3, 7, 8, 9, 11, 12, 13, 1 ...
DOI:
10.1016/j.bse.2020.104054

25. Chemical constituents from the fruits of Solanum incanum L

Author:
Joseph Sakah Kaunda; Ying-Jun Zhang
Source:
Biochemical systematics and ecology 2020 v.90 pp. 104031
ISSN:
0305-1978
Subject:
Solanum incanum; chemical composition; chemotaxonomy; coumarin; fruits; glucosides; glycoalkaloids; lignans; monoterpenoids; nuclear magnetic resonance spectroscopy; phytochemicals; spectral analysis
Abstract:
... Phytochemical investigation of the fruits of Solanum incanum L. resulted in the isolation of nine compounds, including three steroidal glycoalkaloids (1-3), two neolignans (4–5), two simple phenolics (6–7), one monoterpene glycoside (8), and one coumarin glucoside (9). The structure elucidation of isolated compounds was determined based on NMR and mass spectral data. Compounds 4 and 9 were isolate ...
DOI:
10.1016/j.bse.2020.104031

26. Lignans with NO inhibitory activity from Tinospora sinensis

Author:
Jun-Sheng ZHANG; De-Feng XU; Xin-Xin CAO; Yin-Yin WANG; Hua ZHANG
Source:
Chinese journal of natural medicines 2021 v.19 no.7 pp. 500-504
ISSN:
1875-5364
Subject:
Tinospora sinensis; circular dichroism spectroscopy; density functional theory; glucosides; lignans; lipopolysaccharides; macrophages; mice; nitric oxide; spectral analysis
Abstract:
... Two new lignan glucosides, tinsinlignans A and B (1 and 2), two new oxyneolignans, tinsinlignans C and D (3 and 4), along with one known analogue (5), were isolated from the stems of Tinospora sinensis. The structures of the new compounds were elucidated based on analysis of spectroscopic data, and the absolute configuration of 1 was determined through electronic circular dichroism (ECD) calculati ...
DOI:
10.1016/S1875-5364(21)60049-3

27. Chemical constituents and aldose reductase inhibitory activities of Betula alba bark and leaves

Author:
Tomoki Iguchi; Minpei Kuroda; Nanami Akiyama; Mariko Hashimoto; Yoshihiro Mimaki
Source:
Natural product research 2022 v.36 no.4 pp. 1004-1008
ISSN:
1478-6427
Subject:
Betula pubescens var. pubescens; aldehyde reductase; bark; flavanones; glucosides; lignans; methyl salicylate; monoterpenoids; research; spectral analysis; triterpenoids
Abstract:
... Systematic phytochemical investigation of the bark and leaves of Betula alba was independently conducted. A new cyclic diarylheptanoid glucoside (1), five diarylheptanoids (2–6), a phenylethanoid (7), a methyl salicylate glycoside (8), a dihydrobenzofuran glucoside (9), an arylbutanoid glycoside (10), two lignan glycosides (11 and 12), a flavanone glucoside (13), and a triterpene (14) were isolate ...
DOI:
10.1080/14786419.2020.1839455