1617-68-1 AIDS-076591 AIDS076591 Acetic acid (1R,3aR,4S,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-1-isopropenyl-3a,5a,5b,8,8,11a-hexamethyl-eicosahydro-cyclopenta[a]chrysen-9-yl ester Lupeol acetate