| 英文同义词: | 1-Decarboxy-3-oxo-ceathic acid;1-Norbetulonic acid;3'H-Cyclopent[3,4]androst-3-en-18-oic acid, tetrahydro-4,5',5',9-tetramethyl-15-(1-methylethenyl)-4'-oxo-, (3β,4α,5β,8α,9β,10α,13α,14β,15β)-;(1R,3aS,5aR,5bR,7aR,10aR,10bR,12aR,12bR)-1-Isopropenyl-5a,5b,8,8,10a-pentamethyl-9-oxooctadecahydrodicyclopenta[a,i]phenanthrene-3a(1H)-carboxylicaci |