87321-88-8 (2R,6aS,12S)-2α-(3-Furanyl)-1,2,5,6,11aα,11bα-hexahydro-12-methyl-3aαH-5β,11cβ-methanodifuro[3,2-a:3,4-f]oxireno[i][3]benzooxepin-9(10aαH)-one 99694-86-7 (3bS,4aS,5aS,6R,6aR,7aS,7bS,8aS,8bS)-6-hydroxy-6a-(1-hydroxy-1-methylethyl)-8b-methyl-3b,4,4a,6,6a,7a,7b,8b,9,10-decahydrotrisoxireno[6,7:8a,9:4b,5]phenanthro[1,2-c]furan-1(3H)-one