摘要

Three artificial triterpenoids, (20R)-20,25-epoxy-dammaran-2-en-6 alpha,12 beta-diol (1), (2OR)-20,25-epoxy-3-methyl-28-nordammaran-2-en-6 alpha,12 beta-diol (2) and isodehydroprotopanaxatriol (3), were isolated from an acidic hydrolysate of Panax ginseng C.A. Meyer, along with three known triterpenes, (20R)-panaxadiol (4),(20R)-panaxatriol (5) and oleanolic acid (6). Compounds 1-3 and 6 showed inhibitory activity against HIV-1 protease with IC(50) of 10.5, 10.3, 12.3 and 6.3 mu M, respectively. The results indicated that acid treatment of Ginseng extract could produce diverse structures with interesting bioactivity.