157757-81-8 17-((3-(Bis(2-chloroethyl)amino)-4-methylbenzoyl)oxy)-3-aza-A-homoandrost-4A-en-4-one 3-Aza-A-homoandrost-4a-en-4-one, 17-((3-(bis(2-chloroethyl)amino)-4-methylbenzoyl)oxy)-, (17-beta)-