英文名称:2H-Inden-2-one,5-(acetyloxy)-1-[(1R)-1-(acetyloxy)ethyl]octahydro-4-methylene-7-(1-methylethyl)-,(1S,3aR,5R,7S,7aS)-; 2H-Inden-2-one,5-(acetyloxy)-1-[1-(acetyloxy)ethyl]octahydro-4-methylene-7-(1-methylethyl)-,[1S-[1a(S*),3ab,5b,7a,7aa]]-; Petasipalin A