betulin

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的三，目前的研究发现，它们具有较的抗肿瘤、抗HIV病毒活性，它们的衍有较的活性。