171673-36-2 3H-Furo[4,3,2-de]indeno[4,5-h]-2-benzopyran-9,11-dicarboxylicacid,1,6,6b,7,9a,10,11,11b-octahydro-1-(methoxymethyl)-9a,11b-dimethyl-3,6-dioxo-,dimethyl ester, [1S-(1a,6ba,9ab,11a,11bb)]- 152187-39-8 2H,6H,10H-Cyclopropa[4,5]furo[2,3-h]pyrano[2,3-f]-1-benzopyran-6-one,3,4,9a,10a-tetrahydro-4-hydroxy-2,3,10,10-tetramethyl-8-phenyl-,(2R,3R,4S,9aS,10aR)-