anti,cis-8-Aza-oestron-methylether;8-Methoxy-12ac-methyl-1-oxo-(3arH,10btH)-1,2,3,3a,5,6,10b,11,12,12a-decahydro-benzo
cyclopentachinolizin;8-Azaestra-1,3,5(10)-trien-17-one, 3-methoxy-, (14beta)-;(1R,11S,15S)-5-methoxy-15-methyl-10-azatetracyclo[8.7.0.02,7.011,15]heptadeca-2(7),3,5-trien-14-one