103994-21-4

Spiro[furan-3(2H),7'(8'H)-[1H]naphtho[1,8a-c]furan]-2,5',10'(3'H,9'H)-trione,5-(3-furanyl)hexahydro-3'-hydroxy-8'-methyl-, [3'R-[3'a,3'aa,6'aa,7'b(S*),8'b,10'aR*]]-