Dammarane triterpene. Shows antiviral activity with relatively low cytotoxicity.

达玛烷。显示抗病毒活性和相当低细胞毒性。

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

桦木、桦木酸是具有羽扇烷结构化合物，目究发现，它们具有较高抗肿瘤、抗HIV病毒活性，它们衍生物也有较高生物活性。