Triterpenes from Hoya paziae Kloppenb

Chemical investigation of the dichloromethane extracts of the stems of Hoya paziae Kloppenb. led to the isolation of taraxerol (1), taraxeryl acetate (2), and a mixture α-amyrin acetate (3), and ß-amyrin acetate (4) in about 2.5:1 ratio. The structures of 1-4 were identified by comparison of their NMR data with those reported in the literature.