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

1.桦木醇、桦木酸是有结构的三萜化合，目前的研究发现，有较高的抗肿瘤、抗HIV病毒活性，的衍生也有较高的生活性。