Dammarane triterpene. Shows antiviral activity with relatively low cytotoxicity.

达玛烷三烯。显示抗性和相当低细胞性。

Betulin and betulinic acid, the triterpenes of the lupane family, are considered to be potential agents against tumoral cancer and HIV .

桦木醇、桦木酸是具有羽扇烷结构三化合物，目前研究发现，它具有较高抗肿瘤、抗HIV性，它生物也有较高生物性。