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Isolation, structural elucidation, and chemical transformation of interconvertible 8,12-hemiketal germacranolide sesquiterpenoids from Salvia castanea Diels f. tomentosa Stib. 期刊论文

编号：

226B29BE1FA90A8DB0CE0E888B8BB5B3
作者：

Xu, Gang(许刚)#^[1,2]Peng, LiYan^[1];Hou, AiJun(侯爱君)^[3]Yang, Jing^[4];Han, QuanBin(韩全斌)^[2]Xu, HongXi(徐宏喜)^[2]Zhao, QinShi(赵勤实)*^[1]
语种：

英文
期刊：

TETRAHEDRON ISSN：0040-4020 2008 年 64 卷 40 期 (9490 - 9494) ; SEP 29
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关键词：

castanins C-F Salvia castanea Diels f. tomentosa Stib. structure elucidation interconvertible hemiketal isomers chemical transformation
摘要：

From the aerial parts of Salvia castanea Diels f. tomentosa Stib., four new hemiketal germacranolide sesquiterpenoids, castanins C-F (1 -4), were obtained as two pairs of interconvertible forms along with their acetates, 5 and 6. Their structures were elucidated by spectroscopic methods and X-ray analysis of the uninterconvertible isomeric acetates, 5 and 6. The computational study explained that the ratios of 1 and 2, 3 and 4, and their acetates (5 and 6) in the mixtures were 1:1, 1:2, and 1:3, respectively. In addition, the semisynthesis of castanins C (1) and D (2) was conducted by the photooxidation of castanin B (8), the major constituent of this plant. Compounds 5, 6, and 8 were also tested for their inhibitory activity toward MCF-7, HeLa, and HepG2 cell lines. (C) 2008 Elsevier Ltd. All rights reserved.
推荐引用方式
GB/T 7714：

Xu Gang,Peng Li-Yan,Hou Ai-Jun, et al. Isolation, structural elucidation, and chemical transformation of interconvertible 8,12-hemiketal germacranolide sesquiterpenoids from Salvia castanea Diels f. tomentosa Stib. [J].TETRAHEDRON,2008,64(40):9490-9494.
APA：

Xu Gang,Peng Li-Yan,Hou Ai-Jun,Yang Jing,&Zhao Qin-Shi.(2008).Isolation, structural elucidation, and chemical transformation of interconvertible 8,12-hemiketal germacranolide sesquiterpenoids from Salvia castanea Diels f. tomentosa Stib. .TETRAHEDRON,64(40):9490-9494.
MLA：

Xu Gang, et al. "Isolation, structural elucidation, and chemical transformation of interconvertible 8,12-hemiketal germacranolide sesquiterpenoids from Salvia castanea Diels f. tomentosa Stib." .TETRAHEDRON 64,40(2008):9490-9494.
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2024/7/16 0:24:16
更新时间：

2024/7/16 0:24:16
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