Dammarane triterpene. Shows antiviral activity with relatively low cytotoxicity.

达玛烷三萜烯。显示抗病活性和相当低的性。

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

桦木、桦木酸有羽扇烷结构的三萜化合物，目前的研究发现，它们有较高的抗肿瘤、抗HIV病活性，它们的衍生物也有较高的生物活性。