仅用于工业应用或科学研究，不可用于人类或动物的临床诊断或治疗，非药用.Betulinic acid （ALS-357, Lupatic acid, Betulic acid）, a pentacyclic triterpenoid from Syzigium claviflorum, is a inhibitor of HIV-1 with EC50 of 1.4 μ M. It's reported that Betulinic acid acts as a new activator of NF-κB.Phase 1/2.