Synonyms: 16,17-Seco-24-nor-5a,13a,14b,17a-chola-20,22-dien-16-oic acid,14,15b:21,23-diepoxy-3a,7a,12b,17-tetrahydroxy-4,4,8-trimethyl-, 16,17-lactone, triacetate (8CI);D-Homo-24-nor-17-oxachola-20,22-dien-16-one, 1,3,7-tris(acetyloxy)-14,15:21,23-diepoxy-11-hydroxy-4,4,8-trimethyl-,(1a,3a,5a,7a,11b,13a,14b,15b,17aa)-; Nyasin; Oxireno[c]phenanthro[1,2-d]pyran-3(3aH)-one,5,8,10-tris(acetyloxy)-1-(3-furanyl)tetradecahydro-11-hydroxy-4b,7,7,10a,12a-pentamethyl-,[1S-(1a,3aa,4aS*,4bb,5a,6aa,8a,10a,10ab,10ba,11b,12aa)]-