Pentacyclic triterpenoids from Plumeria obtusa - Siddiqui, S.; Siddiqui, B.S.; Begum, S.; Naeed, A. (Elsevier)
Five pentacyclic triterpenoids of the ursane series were isolated from the fresh leaves of Plumeria obtusa and their structures elucidated through chemical and spectroscopic studies. Four of these compounds are hitherto unreported from any natural source.
http://linkinghub.elsevier.com/retrieve/pii/0031-9422(90)85287-P
Keywords: W; V