23400-85-3 3-Aza-17-alpha-ethynyl-17-beta-acetoxy-19-nor-A-homoandrost-4a-en-4-one 3-aza-17alpha-Ethynyl-17beta-acetoxy-19-nor-a-homoandrost-4a-en-4-one BRN 1554499 Cyclopenta(5,6)naphth(1,2-d)azepin-2(3H)-one, 4,5,6,7,7a,8,9,10,10a,10b,11,12-dodecahydro-8-alpha-ethynyl-8-beta-hydroxy-7a-methyl-, acetate (ester)