(4alpha,5S,17beta)-17-(Acetyloxy)-3',4-dihydrocyclopropa(4,5)-B-norandrost-1-en-3-one 17beta-Acetoxy-4alpha,5-cyclo-a-homo-b-nor-5alpha-androst-1-en-3-one 64604-15-5 Cyclopropa(4,5)-B-norandrost-1-en-3-one, 17-(acetyloxy)-3',4-dihydro-, (4alpha,5S,17beta)-