Abstract: Six diterpenoid alkaloids of aconitine-tpe were isolated from Huang-cao-wu(Aconitum vilmorrianum Kom.).Three ester-alkaloids of them named yunaconitine(Ⅰ),vilmorrianine A(Ⅱ),Vilmorrianine C(Ⅲ) had been reported (in press).This article reports the chemical structures of two amino-alkaloids:vilmorrianine B and D.The vilmorrianine B has been identifed by m.p.1HMR.13CMR. as karakoline(Ⅳ).

Key words: Structures

摘要： 我们从云南民间草药黄草乌（Aconitum vilmorianum Kom）根中分离到六个二萜生物碱，其中三个为乌头碱型酯碱：滇乌碱（Yunaconitine）（Ⅰ）、黄草乌碱甲（Vilmorrianine A）（Ⅱ）和碱丙（Vilmorrianine C）（Ⅲ）已交发表。本文报告同一层析柱上分到的另两个乌头碱型胺醇，一个为朱元龙等曾分到的黄草乌碱乙（Vilmorrianine B），另一个为新胺醇，命名为黄草乌碱丁（Vilmorrianine D）。

关键词: 黄草乌碱乙, 碱丁