5064-89-1 (2Z)-4-[8-(acetyloxy)-3,3,11-trimethyl-13-(3-methylbut-2-en-1-yl)-11-(4-methylpent-3-en-1-yl)-7,15-dioxo-3a,4,5,7-tetrahydro-3H,11H-1,5-methanofuro[3,4-g]pyrano[3,2-b]xanthen-1-yl]-2-methylbut-2-enoic acid 144161-80-8 Phenanthro[3,2-b]furan-4,11b(1H)-dicarboxylicacid, 2,3,4,4a,5,6,6a,7,11,11a-decahydro-4,7-dimethyl-, 4-methyl ester, [4S-(4a,4ab,6aa,7b,11ab,11ba)]- 70449-72-8 (1aS,6bR)-1aα,2,3,6b-Tetrahydro-4α-(3-furyl)-6b-[3-[(3S,3aR,6aR)-hexahydro-2,2,3a-trimethyl-5-oxofuro[3,2-b]furan-3-yl]-2-oxopropyl]-3aα,6aα-methanooxireno[e]isobenzofuran-6(4H)-one