Synonyms: 16,17-Seco-24-nor-5a,13a,14b,17a-chola-1,20(22)-diene-16,21-dioicacid, 14,15b-epoxy-7a,17,23,23-tetrahydroxy-4,4,8-trimethyl-3-oxo-,16,17:21,23-dilactone, 7-acetate (8CI); D-Homo-24-nor-17-oxachola-1,20(22)-dien-21-oicacid, 7-(acetyloxy)-14,15-epoxy-23,23-dihydroxy-4,4,8-trimethyl-3,16-dioxo-, g-lactone, (5a,7a,13a,14b,15b,17aa)-; Oxireno[c]phenanthro[1,2-d]pyran-3,8(3aH,4bH)-dione,5-(acetyloxy)-1-(2,5-dihydro-5-hydroxy-2-oxo-3-furanyl)-1,5,6,6a,7,10a,10b,11,12,12a-decahydro-4b,7,7,10a,12a-pentamethyl-,[1R-(1a,3aa,4aR*,4bb,5a,6aa,10ab,10ba,12aa)]-[partial]-; Photogedunin