23-羟基白桦酸

benzyl 3,O-didehydro-20,29-dihydrobetulinate

Phthalic acid 1-((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-3a-benzyloxycarbonyl-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-icosahydro-cyclopenta[a]chrysen-9-yl) ester 2-ethyl ester

methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-1-isopropyl-5a,5b,8,8,11a-pentamethyl-3a-(2-(pyridin-2-yl)ethylcarbamoyl)icosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

methyl 4-((1S,3aS,5aR,5bR,7aS,9S,11aS,11bR,13aR,13bR)-3a-(2-(dimethylamino)ethylcarbamoyl)-1-isopropyl-5a,5b,8,8,11a-pentamethylicosahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate