62139-16-6

SPIRO[FURAN-2(3H),7'(4'H)-[1H,3H-3A,8B]- METHANOBENZO[1,2-B:3,4-C']DIFURAN]-1'-ONE,4- [(2S)-2,5-DIHYDRO-2-METHYL-5-OXO-2- FURANYL]-3'-(3-FURANYL)HEXAHYDRO-8'AHYDROXY- 5,5-DIMETHYL-,(2S,3'R,3'AS,4S,5'AS,- 8'AR,8'BR)-