Taburnaemines A-I, Cytotoxic Vobasinyl-Iboga-Type Bisindole Alkaloids from Tabernaemontana corymbosa.
Taburnaemines A-I, Cytotoxic Vobasinyl-Iboga-Type Bisindole Alkaloids from Tabernaemontana corymbosa.
复制标题
Taburnaemines AâI,来自 Tabernaemontana corymbosa 的细胞毒性 Vobasinyl-Iboga 型双吲哚生物碱
DOI:
10.1021/acs.jnatprod.7b00949
复制
发表时间:
2018-03-23
影响因子:
5.1
通讯作者:
Hao XJ
中科院分区:
文献类型:
--
作者:
Zhang Y;Yuan YX;Goto M;Guo LL;Li XN;Morris-Natschke SL;Lee KH;Hao XJ
Nineteen vobasinyl-ibogan-type bisindole alkaloids, including nine new compounds, taburnaemines A–I (1–9), were isolated from the twigs and leaves of Tabernaemontana corymbosa. The structures and absolute configurations of the new alkaloids were determined by a combination of MS, NMR, and ECD analyses. Alkaloids 1–5 contain a rare 1,3-oxazinane moiety in the vobasinyl unit, while 6 has an uncommon 1,3-oxazolidine moiety in the iboga unit. The absolute configurations of alkaloid 1 and the known alkaloid tabernaecorymbosine A (10) were confirmed by single-crystal X-ray diffraction analysis. All of the bisindole alkaloids, except 2 and 16′-decarbomethoxytabernaecorymbosine A (14), showed antiproliferative activity (IC50 2.6–9.8 μM) against several human cancer cell lines, including A-549, MDA-MB-231, MCF-7, KB, and P-glycoprotein-overexpressing multidrug-resistant KB cells. The preliminary structure–activity relationship correlations are also discussed.
登录
查看更多内容
影响因子:
7.3
作者:
Nakagawa-Goto K;Oda A;Hamel E;Ohkoshi E;Lee KH;Goto M
通讯作者:
Goto M
影响因子:
5.1
作者:
Sheludko, Y;Gerasimenko, I;Stöckigt, J
通讯作者:
Stöckigt, J
影响因子:
5.1
作者:
Lim, Kuan-Hon;Raja, Vijay J.;Kam, Toh-Seok
通讯作者:
Kam, Toh-Seok
影响因子:
5.1
作者:
Sim, Dawn Su-Yin;Teoh, Wuen-Yew;Kam, Toh-Seok
通讯作者:
Kam, Toh-Seok
影响因子:
5.2
作者:
Hirasawa, Yusuke;Miyama, Saori;Morita, Hiroshi
通讯作者:
Morita, Hiroshi