156648-86-1

11H-2,12:11,12a-Diepoxy-2H,4H-pyrano[4,3-a]xanthene-6a,11a(1H,12H)-diol,4-(3-furanyl)-4a,5,6,7a,8,12b-hexahydro-11-methoxy-4a,8,8,10-tetramethyl-2-(1-methylethyl)-,[2R-(2a,4b,4ab,6ab,7aa,11b,11aa,12b,12ab,12bb)]-