The occurrence of triterpenoid, phenolic, and other compounds in the leaves of six endemic Castanopsis species of Hong Kong

Abstract

From the leaves of six Castanopsis species of Hong Kong 35 isolations of compounds have been made. These include 12 different triterpenoid compounds (five related to friedelane including the recently isolated canophyllol, two to hopane, glutinol, lupeol, and taraxasterol), ellagic acid, digallic acid, and β-sitosterol.