Ursane triterpenoids from leaves of melaleuca leucadendron

Phytochemistry
1998.0

Abstract

Three novel triterpenoids esters were isolated from the leaves of Melaleuca leucadendron in addition to the five known triterpenes ursolaldehyde, ursolic acid, 2α-hydroxyursolic acid, 3β-cis-p-coumaroyloxy-2α-hydroxyurs-12-en-28-oic acid and 3ß-trans-p-coumaroyloxy-2x-hydroxyurs-12-en-28-oic acid. The structures of the new compounds were determined by spectral methods to be 3β-cis-p-coumaroyloxy-2x-hydroxyursa-12,20(30)-dien-28-oic acid, cis- and trans- 3B-caffeoyloxy-2x-hydroxyurs-12-en-28-oic acids.

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