81360-35-2 Phenanthro(1,2-c)furan-8(4H)-one, 6-((acetyloxy)methyl)-7-hydroxy-3b,5,5a,6,7,9,9a,9b,10,11-decahydro-3b,6,9a-trimethyl-, (3bR,5aR,6S,7S,9aR,9bR)-