5-oxonoraporphines from Mitrephora cf. maingayi
5-oxonoraporphines from Mitrephora cf. maingayi
复制标题
DOI:
10.1021/np980565x
复制
发表时间:
1999-08-01
影响因子:
5.1
通讯作者:
Goh, SH
中科院分区:
文献类型:
--
作者:
Lee, NHS;Xu, YJ;Goh, SH
Two new 5-oxonoraporphines, 1 and 2, together with three known compounds, ouregidione, 3-methoxycepharadione B, and isoelemicin, have been isolated from the bark of Mitrephora cf, maingrayi. Structures of 1 and 2 were determined to be 1,2,3-trimethoxy-5-oxonoraporphine and 1,2-dimethoxy-3-hydroxy-5-oxonoraporphine on the basis of NMR and MS studies.