title: Photochemical reactions. IV (1). Irradiation of 17 beta-acetoxy-4-aza-androst-5-en-3-one with UV.-light.
mesh_terms: D000736:Androstenes; D001378:Azasteroids; D010777:Photochemistry; D014466:Ultraviolet Rays
chemical_list: D000736:Androstenes; D001378:Azasteroids