A cis-clerodane diterpenic acid from Eperua purpurea
摘要:
From the seed-pods of Eperua purpurea a cis-clerodane diterpenoid was isolated. The structure, proposed from spectroscopic evidence, corresponds to (13E)-2-oxo-5-alpha-cis-17-alpha,20-alpha-cleroda-3,13-diene-15-oic acid.