Structures of triterpenoids from the leaves of Lansium domesticum

AbstractFrom the methanolic extract of the leaves ofLansium domesticum, three new onoceranoid-type triterpenoids, lansium acids X –XII and a new cycloartane-type triterpene, lansium acid XIII, were isolated. The chemical structures of the isolated new compounds were elucidated on the basis of chemical/physicochemical evidence. For new onoceranoid-type triterpenoids, the absolute configurations were established by comparison of experimental and predicted electronic circular dichroism (ECD) data. The isolated onoceranoid-type triterpenoids showed antimutagenic effects in the Ames assay against 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1).
Source: Journal of Natural Medicines - Category: Drugs & Pharmacology Source Type: research