54927-87-6

Spiro[furan-3(2H),7'(8'H)-[1H]naphtho[1,8a-c]- furan]-2,3'(3'aH)-dione,5-(3-furanyl)- octahydro-10'-hydroxy-8'-methyl-,(3R,3'aR,- 5S,6'aS,8'R,10'S,10'aR)-