152135-65-4

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,9aR,10aS)-