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You searched for: Author "Zhao, Xin-cai" Remove constraint Author: "Zhao, Xin-cai" Subject nitric oxide Remove constraint Subject: nitric oxide Subject inhibitory concentration 50 Remove constraint Subject: inhibitory concentration 50 Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Eight new γ-lactam alkaloids from the roots of the Hemerocallis minor Mill.

Author:
Zhao, Xin-cai,   et al.   ; Zhang, Yu; Xie, Yang-guo; Fan, Chao; Huang, Ying-ying; Yan, Shi-kai; Zhang, Yan; Jin, Hui-zi; Zhang, Wei-dong;     Show all 9 Authors
Source:
Fitoterapia 2017
ISSN:
0367-326X
Subject:
Hemerocallis; alkaloids; inhibitory concentration 50; macrophages; nitric oxide; nuclear magnetic resonance spectroscopy; roots; spectral analysis
Abstract:
... Eight new γ-lactam alkaloids, hemerominors A-H (1–8), including two pair of epimers (1–4), together with six known compounds (9–14) were isolated from the roots of Hemerocallis minor Mill. The structures of 1–8 were established on the basis of extensive NMR studies and HR-MS measurements as well as comparison with literature data. The absolute configurations of 1–8 were determined by CD spectral a ...
DOI:
10.1016/j.fitote.2017.03.001

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

Author:
Zhao, Xin-Cai,   et al.   ; Xie, Yang-Guo; ul Hassan, Syed Shams; Zhen, Xiao-Yong; Muhammad, Ishaq; Yan, Shi-kai; Yuan, Xing; Li, Hui-liang; Jin, Hui-zi;     Show all 9 Authors
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