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You searched for: Subject term irradiation Remove constraint Subject term: irradiation Subject term inhibitory concentration 50 Remove constraint Subject term: inhibitory concentration 50 Subject term sesquiterpenoids Remove constraint Subject term: sesquiterpenoids
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1. Cytotoxic and antibacterial activities of iridoids and sesquiterpenoids from Valeriana jatamansi

Author:
Ying-Hong Liu; Pei-Qian Wu; Qiao-Ling Hu; Yue-Juan Pei; Feng-Ming Qi; Zhan-Xin Zhang; Dong-Qing Fei
Source:
Fitoterapia 2017 pp. -
ISSN:
0367-326X
Subject:
Pseudomonas aeruginosa; Staphylococcus aureus; Valeriana jatamansi; X-ray diffraction; antibacterial properties; bacteria; cytotoxicity; inhibitory concentration 50; iridoids; irradiation; medicinal plants; neoplasms; nuclear magnetic resonance spectroscopy; roots; sesquiterpenoids; spectral analysis
Abstract:
... Three new iridoids, valejatanins A–C (1–3), and one new natrual iridoid (4), together with four known sesquiterpenoids (5–8), were isolated from the roots of Valeriana jatamansi Jones. Compounds 3 and 4 are C(4)-epimers. Their structures were elucidated by extensive spectroscopic analysis (IR, HRESIMS, 1D and 2D NMR) and by comparison of their NMR data with those of related compounds. The absolute ...
DOI:
10.1016/j.fitote.2017.09.011

2. One new sesquiterpene and one new iridoid derivative from Valeriana amurensis

Author:
Yang-Guo Xie; Xin-Cai Zhao; Syed Shams ul Hassan; Xiao-Yong Zhen; Ishaq Muhammad; Shi-kai Yan; Xing Yuan; Hui-liang Li; Hui-zi Jin
Source:
Phytochemistry letters 2019 v.32 pp. 6-9
ISSN:
1874-3900
Subject:
Valeriana; X-ray diffraction; anti-inflammatory activity; inhibitory concentration 50; irradiation; macrophages; nitric oxide; sesquiterpenoids; spectral analysis; stereochemistry
Abstract:
... One new sesquiterpene 1S, 3S, 4S, 7S 3,4-dihydroxy-bisabolol (1), one new iridoid amurensin A (2) and 10 known compounds were isolated from the whole plants of Valeriana amurensis. Their structures were established on the basis of extensive spectroscopic analysis and the absolute stereochemistry of compound 1 was assigned by X-ray diffraction analysis with Cu-Kα irradiation. All of compounds were ...
DOI:
10.1016/j.phytol.2019.04.020

3. Wilsonols A–L, Megastigmane Sesquiterpenoids from the Leaves of Cinnamomum wilsonii

Author:
Shu Penghua; Wei Xialan; Xue Yongbo; Li Weijie; Zhang Jinwen; Xiang Ming; Zhang Mengke; Luo Zengwei; Li Yan; Yao Guangmin; Zhang Yonghui
Source:
Journal of natural products 2013 v.76 no.7 pp. 1303-1312
ISSN:
1520-6025
Subject:
Cinnamomum; X-ray diffraction; anticarcinogenic activity; chemical structure; cytotoxicity; epithelial cells; humans; immunomodulators; inhibitory concentration 50; irradiation; leaves; neoplasms; sesquiterpenoids; spectral analysis
Abstract:
... Twelve new megastigmane sesquiterpenoids, wilsonols A–L (1–12), were isolated from the leaves of Cinnamomum wilsonii, along with seven known analogues (13–19). The structures of compounds 1–12 were established by spectroscopic analyses. The absolute configurations of 1–5 were determined by single-crystal X-ray diffraction analysis with Cu Kα irradiation, and the absolute configurations of 6–12 wer ...
DOI:
10.1021/np4002493