Synonyms: A-Homo-24-nor-4-oxachola-14,20,22-trien-3-one,1,6,7-tris(acetyloxy)-21,23-epoxy-4,4,8-trimethyl-, (1a,5a,6a,7a,13a)-; 3H-Cyclopenta[5,6]naphth[2,1-c]oxepin-3-one,5,11,12-tris(acetyloxy)-8-(3-furanyl)-1,4,5,5a,5b,6,7,7a,8,9,10b,11,12,12a-tetradecahydro-1,1,5a,7a,10b-pentamethyl-,[5S-(5a,5ab,5ba,7aa,8a,10bb,11a,12a,12aa)]-; Delevoyin B