摘要
从云南狗牙花(ErvatamiayunnanensisTsiang)地上部分的乙醇提取物中分离到8个化合物和1个混碱,经光谱法分别鉴定为:19S-hydroxy-tacamine(1)、19S-hydroxy-16-epi-tacamine(2)、17-demethoxy-corynoxineB(3)、17-demethoxy-hydrocorynoxineB(4)、ervatamine(5)、tabernaemontanine(6)、新穿心莲内酯(7)和β-谷甾醇(8);混碱系由19,20-dehydroervatamine和20-epi-ervatamine组成。化合物(2)为新生物碱。化合物(4)和(7)系首次从夹竹桃科植物中获得。
Eight compounds and a mixture with two alkaloids have been isolated from the aerial parts of Ervatamia yunnanensis Tsiang . Their chemical structures and the composition of the mixture have been established as 19S-hydroxy-tacamine (1), 19S-hydroxy-16-epi-tacamine(2), 17-demethoxy-corynoxine B(3), 17-demethoxy-hydrocorynoxine B(4), ervatamine(5) and tabernaemontanine(6), neoandrographalide(7), β-sitosterol(8) and the mixture with 19,20-dehydroervatamine and 20-epi-ervatamine by means of spectral evidence. Compound(2) is a new one, while compounds(4) and (7) are reported for the first time from the family Apocynaceae.
出处
《云南植物研究》
CSCD
1999年第3期399-405,共7页
Acta Botanica Yunnanica
关键词
云南狗牙花
夹竹桃科
吲哚生物碱
Ervatamia yunnanensis, Apocynaceae, Indole alkloids
