Triterpenoid Acids from Kadsura ananosma

摘要

Ananosic acid D,a new 18 (13->12) abeo lanostane triterpenoid acid was isolated from the stem barks of Kadsura ananosma and assigned the structure 3alpha-hydroxy-18 (13->12) abeo lanost-7 (8),12 (18),24 (Z)-trien-26-oic acid (1) by spectroscopic analysis including HR-ESI-MS and 2D-NMR.In addition,known lanostane triterpenoid acids 24(E)-3-oxo-lanosta-8,24-dien-26-oic acid (2) and anwuweizic acid (3) were also obtained from this species.2 was obtained as a new natural product and 3 was isolated from the plant for the first time.