Showing structure for (2R,7aS,11R,13S,14aR)-rel-(-)-2,3,12,13-Tetrahydro-9-hydroxy-6,7,7a,8,13-pentamethoxy-2,11-diphenyl-11H-furo[2,3-f:4,5-i']bis[1]benzopyran-5(7aH)-one