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You searched for: Journal name Chemistry of natural compounds Remove constraint Journal name: Chemistry of natural compounds Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Source 2019 v.55 no.3 Remove constraint Source: 2019 v.55 no.3
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1. Anthraquinone and Naphthoquinone Derivatives from the Pericarps of Juglans sigillata

Author:
Jing-Jing Liang; Jia Zhou; Jian Song; Han-Li Ruan
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 435-439
ISSN:
0009-3130
Subject:
Juglans sigillata; anthraquinones; chemistry; cytotoxicity; inhibitory concentration 50; naphthoquinones; neoplasm cells; nuclear magnetic resonance spectroscopy
Abstract:
... Four new anthraquinones (1–4), along with four known ones (5–8) and five known naphthoquinones (9–13), were isolated from the green pericarps of Juglans sigillata. The structures of the new compounds were elucidated as 1,3-diethoxycarbonyl-8-hydroxy-9,10-anthraquinone (1), 1,3-diethoxycarbonyl-5-hydroxy-9,10-anthraquinone (2), 1-ethoxycarbonyl-8-hydroxy-9,10-anthraquinone (3), and 1-ethoxycarbonyl ...
DOI:
10.1007/s10600-019-02708-5

2. Correction to: Synthesis of Aminoalkylated Aziridines from (+)-3-Carene

Author:
S. N. Curlat; A. N. Barba; V. V. Boldescu; C. Pannecouque; F. Z. Macaev
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 595
ISSN:
0009-3130
Subject:
aziridines; cytotoxicity; monoterpenoids; synthesis
Abstract:
... The name of the fourth author should read C. Pannecouque. ...
DOI:
10.1007/s10600-019-02756-x

3. Flavonoid Glycosides From the Bulbs of Lilium speciosum var. gloriosoides and their Potential Antiviral Activity Against RSV

Author:
Wen Chen; Hui Zhang; Jianfen Wang; Xiaojian Hu
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 461-464
ISSN:
0009-3130
Subject:
Lilium speciosum; Respiratory syncytial virus; antiviral properties; bulbs; chemistry; flavones; fractionation; glycosides; inhibitory concentration 50; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Bioassay-guided fractionation of the 70% methanolic extract of Lilium speciosum var. gloriosoides Baker resulted in the isolation of a new flavone C-glucoside, speciflavoside A (1), along with four known flavonoids (2–5). The structures of the isolates were assigned on the basis of spectroscopic data analysis, focusing on interpretation of 1D and 2D NMR, and MS data. All the isolates were tested f ...
DOI:
10.1007/s10600-019-02714-7

4. Imidazolium-Sulfobetaine Based on Betulin with Proliferative Activity for HEK293 and T-Lymphocyte Cells

Author:
N. G. Komissarova; S. N. Dubovitskii; A. V. Orlov; O. V. Shitikova; V. A. Vakhitov; L. F. Zainullina; Yu. V. Vakhitova; M. S. Yunusov
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 485-489
ISSN:
0009-3130
Subject:
T-lymphocytes; betulin; chemistry; imidazoles; immunostimulants; sulfonates
Abstract:
... A betulin derivative with an (imidazolium)butane-1-sulfonate fragment was synthesized and promoted proliferation in vitro of HEK293 and human T-lymphocyte cells, suggesting that this compound had immunostimulant properties. ...
DOI:
10.1007/s10600-019-02721-8

5. Isolation and Spectral Studies of a New Lactone Triterpenoid from Lantana camara

Author:
Anjum Ayub; Sabira Begum; Syed Tahir Ali; Sara; Bina Shaheen Siddiqui
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 478-481
ISSN:
0009-3130
Subject:
Lantana camara; aerial parts; chemical structure; lactones; nuclear magnetic resonance spectroscopy; spectral analysis; triterpenoids
Abstract:
... A new lactone triterpenoid lantanolide along with four known triterpenoids were isolated from the ether fraction of above-ground parts of Lantana camara L. The chemical structure of the new compound was determined to be 3-oxo-12α,22β,25-trihydroxy-18β-olean-28,13β-olide (1), based on spectroscopic data including UV, IR, EI-MS, HR-EI-MS, and 1D and 2D NMR. ...
DOI:
10.1007/s10600-019-02719-2

6. Lipoxygenase and α-Glucosidase Inhibitory Constituents of Phlomis stewartii

Author:
Naheed Riaz; Hafiza Mehwish Rafiq; Muhammad Saleem; Bushra Jabeen; Muhammad Ashraf; Ishtiaq Ahmed; Tehreem Tahir; Rasool Bakhsh Tareen
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 493-498
ISSN:
0009-3130
Subject:
Phlomis; alpha-glucosidase; chemistry; enzyme inhibition; hexane; inhibitory concentration 50; lipoxygenases; sphingolipids
Abstract:
... Two new sphingolipids, stewartins A: [(2S,3S,4R)-2-{[(2R,11E)-2-hydroxyoctadec-11-enoyl]amino}tetraeicosane-1,3,4-triol-1-O-β-D-glucopyranoside, 1] and B: [(2S,3S,4R)-2-{[(2R,11E)-2-hydroxyeicos-11-enoyl]amino}tetraeicosane-1,3,4-triol-1-O-β-glucopyranoside, 2], along with nine known compounds (3–11) were isolated from the n-hexane soluble fraction of the methanolic extract of the whole plant of P ...
DOI:
10.1007/s10600-019-02723-6

7. A New Cucurbitacin Glucoside from Luffa graveolense

Author:
S. Kumar; K. Sharma; M. Sahai; R. Maurya
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 490-492
ISSN:
0009-3130
Subject:
Luffa; chemistry; cucurbitacins; glucosides; spectral analysis
Abstract:
... A new cucurbitacin glucoside has been isolated from an ethanolic extract of Luffa graveolense, along with four known cucurbitacins. Its structure has been assigned as 20-O-β-D-glucopyranosyl cucurbitacin B (2) by spectroscopic analysis. ...
DOI:
10.1007/s10600-019-02722-7

8. A New Furan-Coumarin from Clausena lansium

Author:
Wenwen Peng; Lixia Zheng; Guanghua Huo
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 440-442
ISSN:
0009-3130
Subject:
Clausena lansium; branches; chemistry; coumarin; leaves; mass spectrometry; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... A new furan-coumarin, claulancoumarin (1), together with a known coumarin, clausenalansimin A (2), were isolated from the branches and leaves of Clausena lansium. Their structures were elucidated by spectroscopic analysis, including high-resolution mass spectroscopy, and IR, UV, and 1D and 2D NMR techniques. ...
DOI:
10.1007/s10600-019-02709-4

9. New Lignan from the Flowers of Forsythia koreana

Author:
Yeong-Geun Lee; Kyeong-Hwa Seo; Jung Eun Gwag; Hyoung-Geun Kim; Jung-Hwan Ko; Dae Young Lee; Nam-In Baek
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 432-434
ISSN:
0009-3130
Subject:
Forsythia viridissima var. koreana; chemical structure; flowers; lignans
Abstract:
... A new lignan (1) was isolated from the flowers of Forsythia koreana along with one known lignan, 4,4′-di-O-β-D-glucosylpinoresinol (2). The molecular structures were determined using spectral methods. These compounds were isolated from F. koreana flowers for the first time. ...
DOI:
10.1007/s10600-019-02707-6

10. A New Phenolic Compound with Anti-Inflammation Activity From Caulophyllum robustum

Author:
Bin-Hua Qin; Qiao-Yu Yuan; Xin-Qiao Liu; Hai-Yan Han; Wang-Jing
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 465-468
ISSN:
0009-3130
Subject:
Caulophyllum; anti-inflammatory activity; chemistry; rhizomes; spectral analysis
Abstract:
... A new phenolic compound, named (E)-2,4-bis(p-hydroxyphenyl)-2-butenol (1), together with three known compounds were isolated from the radix and rhizome of Caulophyllum robustum Maxim. Their structures were elucidated on the basis of spectral data. The anti-inflammation characteristics of the new compound and the three known compounds were tested. ...
DOI:
10.1007/s10600-019-02715-6

11. A New Polyphenolic Glycoside from Scutellaria barbata

Author:
Wen-Yan Gu; Jia Chen; Yi-Yuan Tang; Jian-Hua Shao; Chun-Chao Zhao
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 469-470
ISSN:
0009-3130
Subject:
Scutellaria barbata; carbon; chemistry; chromatography; glycosides; nuclear magnetic resonance spectroscopy; spectral analysis; stable isotopes
Abstract:
... A new polyphenolic glycoside 1, together with three known compounds (2–4), was isolated from Scutellaria barbata by repeated column chromatography. Its structure was identified as 1-O-β-D-glucopyranosyl-(2R)-3-(4-hydroxy-3,5-dimethoxyphenyl)-propanediol (1) by spectroscopic data (¹H NMR, ¹³C NMR, HSQC, HMBC, and ORD) and chemical method. ...
DOI:
10.1007/s10600-019-02716-5

12. A New Quassinoid from Brucea javanica and its Antiplasmodial and Cytotoxic Activities

Author:
Parinuch Chumkaew; Atiphon Phatthiya; Uraiwan Werapun; Theera Srisawat
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 471-473
ISSN:
0009-3130
Subject:
Brucea javanica; Plasmodium falciparum; antimalarials; breast neoplasms; carcinoma; chemical structure; cytotoxicity; inhibitory concentration 50; leaves; spectral analysis
Abstract:
... Brujavanol E (1), a new quassinoid derivative, along with four known quassinoids (2–5), were isolated from the leaves of Brucea javanica. The chemical structure was elucidated on the basis of extensive spectroscopic analysis. Compound 1 showed significant antimalarial activity (against Plasmodium falciparum strain K1) and cytotoxicity activity against human oral epidermoid carcinoma cancer (KB) an ...
DOI:
10.1007/s10600-019-02717-4

13. Novel Method for O-Acetylation of Cholesterol, Allobetulin, and Betulin

Author:
Salah Arrous; Imene Boudebouz; Abdigali Bakibaev; Phuoc Hoang; I. Parunov
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 482-484
ISSN:
0009-3130
Subject:
acetates; acetylation; betulin; catalysts; chloroform; cholesterol
Abstract:
... Primary and secondary triterpene alcohols were acetylated for the first time using tetraacetylglycoluril (TAGU). Cholesterol, allobetulin, and betulin acetates were obtained in high yields. The acetylation used p-TsOH or TFA in refluxing CHCl₃. TFA was found to be an effective acetylation catalyst. ...
DOI:
10.1007/s10600-019-02720-9

14. One-Pot Synthesis of 2nd Ruthenium Grubbs Catalyst for Preparation of One Stapled Peptide

Author:
Liang Xia; Tao Peng; Gang Wang; Xiaoxue Wen; Shouguo Zhang; Lin Wang
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 525-527
ISSN:
0009-3130
Subject:
catalysts; oxygen; peptides; ruthenium; synthesis
Abstract:
... 2nd Grubbs catalyst was prepared using a new strategy for efficient preparation of a stapled peptide. The reaction was short and avoided the effect of oxygen and moisture. ...
DOI:
10.1007/s10600-019-02730-7

15. Solid-Phase Synthesis of Cyclic Octapeptide Phakellistatin 15

Author:
Yu-lei Li; Ming-hao Wu; Qi Chang; Xia Zhao
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 520-524
ISSN:
0009-3130
Subject:
Porifera; acetic acid; amino acids; chemistry; methylene chloride; nuclear magnetic resonance spectroscopy; reversed-phase high performance liquid chromatography
Abstract:
... The total synthesis of a naturally occurring cyclic proline-enriched octapeptide phakellistatin 15, from a marine sponge, where all the amino acids are in L-configuration, was reported. The phakellistatin 15 was synthesized by applying a two-step solid-phase/solution synthesis strategy. The linear octapeptide was assembled by standard Fmoc chemistry on 2-chlorotrityl chloride resin, cleaved off-re ...
DOI:
10.1007/s10600-019-02729-0

16. Synergistic Catalysis of Glycosyltransferase and Sucrose Synthase to Produce Isoquercitrin Through Glycosylation of Quercetin

Author:
Jian-jun Pei; An-na Chen; Lin-guo Zhao; Fu-liang Cao; Xiang-qian Li; Wei Xiao
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 453-457
ISSN:
0009-3130
Subject:
Arabidopsis; Glycine max; catalytic activity; glycosylation; isoquercitrin; quercetin; sucrose synthase; uridine diphosphate; water solubility
Abstract:
... Isoquercitrin exhibits a number of biological properties and has a higher water solubility than quercetin. In this work, an Arabidopsis glycosyltransferase with high activity on quercetin (AtUGT78D2) was coupled with an efficient quercetin-tolerant Glycine max sucrose synthase (GmSUS) to synthesize isoquercitrin by regenerating UDP-glucose from UDP. The important factors for optimal synergistic ca ...
DOI:
10.1007/s10600-019-02712-9

17. Synthesis and Properties of 2-Carboxyethyland 2-Carboxypropylchromones

Author:
G. P. Mrug; B. A. Demidchuk; S. P. Bondarenko; N. V. Gorbulenko; M. S. Frasinyuk
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 443-448
ISSN:
0009-3130
Subject:
anhydrides; butyric acid; chemical reactions; synthesis; xanthenes
Abstract:
... Reaction features of polyhydroxydeoxybenzoins and their heteroatomic analogs with succinic and glutaric anhydrides were studied and shown to be useful for synthesizing 3-(3-pyrazolyl)butyric acids and 4,11-dioxo-8,10,11,12-tetrahydro-4H,9H-pyrano[2,3-a]xanthene derivatives with a butyric acid moiety. ...
DOI:
10.1007/s10600-019-02710-x

18. Synthesis and Properties of 8-Substituted 1-(2-Oxopropyl)Theobromine Derivatives

Author:
D. G. Ivanchenko; N. I. Romanenko; V. I. Kornienko; N. N. Polishchuk; T. A. Sharapova
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 509-512
ISSN:
0009-3130
Subject:
antifungal properties; physicochemical properties; theobromine
Abstract:
... A method for preparing previously unreported and potentially biologically active 1-(2-oxopropyl)theobromine derivatives was developed. Their physicochemical properties and antibacterial and antifungal activities were studied. ...
DOI:
10.1007/s10600-019-02727-2

19. Synthesis of Natural and Biologically Active Quinoxaline Analogs

Author:
Yu. A. Azev; O. S. Koptyaeva; A. N. Tsmokalyuk; T. A. Pospelova; N. A. Gerasimova; N. P. Evstigneeva; N. V. Zil’berberg; N. V. Kungurov; O. N. Chupakhin
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 513-519
ISSN:
0009-3130
Subject:
Lewis bases; antifungal properties; bioactive compounds; catalytic activity; chemical derivatives; chemical reactions; quinoxalines; synthesis
Abstract:
... Reactions of quinoxalines and quinoxalin-2-ones with C-nucleophiles under acid-catalysis conditions gave products from nucleophilic substitution of hydrogen. Substitution of F atoms in the aromatic core of quinoxalines was studied. Antibacterial and fungistatic activity of the synthesized compounds was studied. ...
DOI:
10.1007/s10600-019-02728-1

20. Synthesis, Structure, and Properties of New Lupinine O-Acyl Derivatives

Author:
O. A. Nurkenov; Zh. S. Nurmaganbetov; S. D. Fazylov; Zh. B. Satpaeva; K. M. Turdybekov; T. M. Seilkhanov; S. A. Talipov
Source:
Chemistry of natural compounds 2019 v.55 no.3 pp. 506-508
ISSN:
0009-3130
Subject:
acylation; alkaloids; crystal structure
Abstract:
... Acylation of the alkaloid lupinine produced O-cinnamoyllupinine and O-lipoyllupinine. The structure of O-cinnamoyllupinine was established by an X-ray crystal structure analysis. ...
DOI:
10.1007/s10600-019-02726-3