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You searched for: Journal name Journal of Asian natural products research Remove constraint Journal name: Journal of Asian natural products research Publication Year 2018 Remove constraint Publication Year: 2018 Subject ethanol Remove constraint Subject: ethanol
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1. Antioxidant phenolic acids from the leaves of Armeniaca sibirica

Author:
Ya-Nan Wu; Wei Wang; Guo-Dong Yao; Xue-Feng Jiang; Yan Zhang; Shao-Jiang Song
Source:
Journal of Asian natural products research 2018 v.20 no.10 pp. 969-976
ISSN:
1477-2213
Subject:
2,2-diphenyl-1-picrylhydrazyl; Prunus sibirica; antioxidant activity; chemical constituents of plants; ethanol; free radical scavengers; leaves; nuclear magnetic resonance spectroscopy; phenolic acids; spectral analysis
Abstract:
... Phytochemical investigation of the leaves of Armeniaca sibirica (L.) Lam. led to the isolation of two new phenolic acids (1–2), together with eight known compounds (3–10) from the ethanol extracts of this plant. Structures of these compounds were elucidated through detailed spectroscopic analyses, using 1D-NMR and 2D-NMR in combination with HR-EI-MS techniques. All the compounds were evaluated for ...
DOI:
10.1080/10286020.2017.1373101

2. Clemochinenosides C and D, two new macrocyclic glucosides from Clematis chinensis

Author:
Lu Qiu; Hai-Mei Yuan; Jun-Ming Liang; Xiao-Ling Cheng; Ping Wang; Yu-Feng Du; Qiang Fu
Source:
Journal of Asian natural products research 2018 v.20 no.11 pp. 1038-1044
ISSN:
1477-2213
Subject:
Clematis; cell proliferation; ethanol; glucosides; human umbilical vein endothelial cells; hydrolysis; inhibitory concentration 50; macrophages; rhizomes; roots; spectral analysis; tumor necrosis factor-alpha
Abstract:
... The EtOH extract of the roots and rhizomes of Clematis chinensis afforded two new macrocyclic glucosides clemochinenosides C (1) and D (2). Their structures were elucidated on the basis of spectroscopic means and hydrolysis products. These compounds were evaluated for inhibitory activity against lipopolysaccharides-induced TNF-α production in RAW 246.7 macrophages. Compounds 1 and 2 showed moderat ...
DOI:
10.1080/10286020.2017.1387780

3. Cytotoxic gelsedine-type indole alkaloids from Gelsemium elegans

Author:
Hai-Tao Wang; Yan-Chun Yang; Xia Mao; Ying Wang; Rui Huang
Source:
Journal of Asian natural products research 2018 v.20 no.4 pp. 321-327
ISSN:
1477-2213
Subject:
Gelsemium; branches; cell lines; cytotoxicity; ethanol; indole alkaloids; inhibitory concentration 50; larynx; leaves; mass spectrometry; neoplasm cells; nuclear magnetic resonance spectroscopy
Abstract:
... The ethanol extract of the leaves and branches of Gelsemium elegans afforded three new gelsedine-type indole alkaloids, 11-methoxy-14,15-dihydroxyhumantenmine (1), 11-methoxy-14,15-dihydroxy-19-oxogelsenicine (2), and 11-methoxy-14-hydroxygelsedilam (3), along with one known alkaloid 11-methoxy-14-hydroxyhumantenmine (4). The structures of isolated compounds were established based on 1D and 2D (¹H ...
DOI:
10.1080/10286020.2017.1342637

4. Cytotoxic monoterpenoid-type alkaloids from the aerial parts of Melodinus morsei

Author:
Jia-Fu Yin; Xia Mao; Jiang Hu; Yan Song
Source:
Journal of Asian natural products research 2018 v.20 no.6 pp. 525-530
ISSN:
1477-2213
Subject:
aerial parts; alkaloids; cell lines; cytotoxicity; ethanol; inhibitory concentration 50; monoterpenoids; neoplasm cells; spectral analysis
Abstract:
... Three new monoterpenoid alkaloids, melomorines A–C (1–3), along with melohemsine B (4), were isolated from the 70% ethanol extract of the aerial parts of Melodinus morsei. Structural elucidation of all the compounds was performed on the basis of spectral data. All the compounds were tested in vitro for cytotoxic activities. As a result, alkaloids 1, 2, and 4 exhibited cytotoxicities against all th ...
DOI:
10.1080/10286020.2017.1353497

5. Cytotoxic ring A-seco triterpenoids from the stem bark of Dysoxylum lukii

Author:
Rui Huang; Ying Zhao; Ying Wang; Lei Zhou; Yu-Feng Chen; Jin-Feng Wang
Source:
Journal of Asian natural products research 2018 v.20 no.9 pp. 860-866
ISSN:
1477-2213
Subject:
Dysoxylum; bark; cell lines; cytotoxicity; ethanol; inhibitory concentration 50; nuclear magnetic resonance spectroscopy; osteosarcoma; triterpenoids
Abstract:
... A chemical investigation of the 70% ethanol extract from the stem bark of Dysoxylum lukii afforded three new ring A-seco triterpenoids, dysoxylukiines A–C (1–3). Their structures were elucidated on the basis of extensive 1D and 2D NMR (COSY, HMQC, HMBC, and NOESY) analyses. The isolated compounds were evaluated in vitro for cytotoxic properties. Consequently, compound 3 exhibited modest cytotoxic ...
DOI:
10.1080/10286020.2017.1399880

6. Iridoid glycosides from the fruits of Cornus officinalis

Author:
Xin Wang; Chong-Hui Liu; Jin-Jie Li; Bo Zhang; Lin-Lin Ji; Xiao-Ya Shang
Source:
Journal of Asian natural products research 2018 v.20 no.10 pp. 934-942
ISSN:
1477-2213
Subject:
Cornus officinalis; ethanol; fruits; iridoid glycosides; neuroprotective effect; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Four new iridoid glycosides named cornusphenosides A–D (1–4) were isolated from an ethanol extract of the fruits of Cornus officinalis (shan zhu yu). The structures of these compounds were elucidated on the basis of spectroscopic data (UV, IR, HRESIMS, and 1D and 2D NMR) and chemical evidence. The neuroprotective effects of compounds 1–4 were also assessed in vitro. ...
DOI:
10.1080/10286020.2018.1497609

7. Matteucens I-J, phenolics from the rhizomes of Matteuccia orientalis

Author:
Ling-Juan Zhu; Ying Song; Peng Shao; Xue Zhang; Xin-Sheng Yao
Source:
Journal of Asian natural products research 2018 v.20 no.1 pp. 62-66
ISSN:
1477-2213
Subject:
Matteuccia; ethanol; nuclear magnetic resonance spectroscopy; phenolic compounds; rhizomes; spectral analysis
Abstract:
... Two new phenolics, named matteucens I-J (1-2), were isolated from the 60% EtOH extract of the rhizomes of Matteuccia orientalis (HOOK.) TREV. Their structures were elucidated by means of extensive spectroscopic analysis (HRESIMS, NMR). ...
DOI:
10.1080/10286020.2017.1409735

8. Oleiferoside W from the roots of Camellia oleifera C. Abel, inducing cell cycle arrest and apoptosis in A549 cells

Author:
Jiang-Ping Wu; Nai-Xin Kang; Mi-Ya Zhang; Hong-Wei Gao; Xiao-Ran Li; Yan-Li Liu; Qiong-Ming Xu; Shi-Lin Yang
Source:
Journal of Asian natural products research 2018 v.20 no.8 pp. 793-806
ISSN:
1477-2213
Subject:
Camellia oleifera; acetylcysteine; antineoplastic agents; apoptosis; cell cycle checkpoints; cytotoxicity; ethanol; lung neoplasms; membrane potential; mitochondria; mitochondrial membrane; pro-apoptotic proteins; roots; saponins; therapeutics; China
Abstract:
... Camellia oleifera C. Abel has been widely cultivated in China, and a group of bioactive constituents such as triterpeniod saponin have been isolated from C. oleifera C. Abel. In the current study, a new triterpeniod saponin was isolated from the EtOH extract of the roots of C. oleifera C. Abel, named as oleiferoside W, and the cytotoxic properties of oleiferoside W were evaluated in non-small cell ...
DOI:
10.1080/10286020.2017.1347640

9. Pyrrolo[2,1-a]isoquinoline and pyrrole alkaloids from Sinomenium acutum

Author:
Hai-Ning Lv; Ke-Wu Zeng; Ming-Bo Zhao; Yong Jiang; Peng-Fei Tu
Source:
Journal of Asian natural products research 2018 v.20 no.3 pp. 195-200
ISSN:
1477-2213
Subject:
Sinomenium acutum; alkaloids; ethanol; isoquinolines; pyrroles; rhizomes; spectral analysis
Abstract:
... Two pyrrolo[2,1-a]isoquinolines (1 and 2) and three pyrrole alkaloids (3−5), including three new ones, named sinopyrines A−C (1−3), were isolated from the 95% EtOH extract of the stems and rhizomes of Sinomenium acutum (Thumb.) Rehd. et Wils. The structures of the new compounds were elucidated on the basis of spectroscopic data. This is the first report of pyrrole-bearing natural compounds from th ...
DOI:
10.1080/10286020.2017.1326910

10. Structure determination of two new C₂₁ steroidal glycosides from Cynanchum komarovii

Author:
Dan Zhao; Ming-Xu Tang; Shan-Shan Su; Xiao-Jie Lu; Yu-Bo Wang; Shao-Fei Chen; Hai-Feng Wang; Gang Chen; Yue-Hu Pei
Source:
Journal of Asian natural products research 2018 v.20 no.9 pp. 852-859
ISSN:
1477-2213
Subject:
Cynanchum; acid hydrolysis; ethanol; fluorouracil; glycosides; herbs; human cell lines; humans; inhibitory concentration 50; neoplasm cells; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Two new 13,14:14,15-disecopregnane-type C₂₁ steroidal glycosides, namely komarosides R (1) and S (2), along with four known compounds (3–6), were obtained from the 95% ethanol extract of the whole herbs of Cynanchum komarovii Al.Iljinski (Asclepiadaceae). The structures of new compounds were elucidated on the basis of 1D, 2D NMR spectroscopic data and acid hydrolysis. Compounds 1 and 2 showed pote ...
DOI:
10.1080/10286020.2017.1396977

11. Two new p-coumaroylated sesquiterpenoids from Pilea cavaleriei

Author:
Heng-Chun Ren; Jun Zhang; Hong Liang
Source:
Journal of Asian natural products research 2018 v.20 no.2 pp. 109-116
ISSN:
1477-2213
Subject:
Pilea; ethanol; herbs; nuclear magnetic resonance spectroscopy; sesquiterpenoids
Abstract:
... A new p-coumaroylated santalane-type sesquiterpenoid, 8-p-coumaroyl-α-santalene (1), a new p-coumaroylated oplopanane-type sesquiterpenoid, 8-β-p-coumaroyl-oplopanone (2), and three known p-coumaroylated humulene-type sesquiterpenoids (3–5) were isolated from the ethanol extract of the whole herbs of Pilea cavaleriei. Their structures were elucidated based on the combination of 1D and 2D NMR and H ...
DOI:
10.1080/10286020.2017.1320990

12. Two new sesquiterpene lactones from leaves of yacon, Smallanthus sonchifolius

Author:
Xiao-Ku Ran; Khin Khin Win Aung; Jun Bai; Pei-Yuan Dou; Zheng Zeng; De-Qiang Dou
Source:
Journal of Asian natural products research 2018 v.20 no.6 pp. 538-544
ISSN:
1477-2213
Subject:
Smallanthus sonchifolius; chemical composition; cytotoxicity; ethanol; hepatoma; human cell lines; leaves; nuclear magnetic resonance spectroscopy; sesquiterpenoid lactones
Abstract:
... The chemical constituents of 95% EtOH extract of yacon leaves were separated to yield two new sesquiterpene lactones, together with three known compounds. The two new compounds were characterized to be 8β-angeloyloxy-13-methoxyl-11, 13-dihydromelampolid-14-oic acid methyl ester (1) and 8β-(3-methylbut-2-enoyl) oxy-13-methoxyl-11, 13-dihydromelampolid-14-oic acid methyl ester (2) on the basis of NM ...
DOI:
10.1080/10286020.2017.1411346

13. Two new terpenoid ester glycosides from the twigs of Litsea cubeba

Author:
Ling-Yan Wang; Ye Tian; Yu-Hong Qu; Yu-Zhuo Wu; Yan-Cheng Li; Rui Li; Peng-Cheng Lin; Xiao-Ya Shang; Sheng Lin
Source:
Journal of Asian natural products research 2018 v.20 no.12 pp. 1129-1136
ISSN:
1477-2213
Subject:
Litsea cubeba; branches; cell lines; circular dichroism spectroscopy; cytotoxicity; ethanol; glycosides; inhibitory concentration 50; monoterpenoids; nuclear magnetic resonance spectroscopy; sesquiterpenoids
Abstract:
... A new sesquiterpenoid ester glycoside (1) and a new monoterpenoid ester glycoside (2) have been isolated from an ethanol extract of the twigs of Litsea cubeba. Their structures were elucidated by extensive 1D- and 2D-NMR experiments, and the absolute configurations were determined by chemical methods, specific rotation, and a combination of experimental and theoretically calculated electronic circ ...
DOI:
10.1080/10286020.2018.1526789