17.beta.-thiocarboxylic acid esters of 3-oxo-4-halo-16.beta.-met
18-Methyl-19-nor-20-ketopregnanes and process for the preparatio
18-Substituted pregn-4-ene-3,20-diones
19-Oxygenated-5.alpha.-androstanes for the enhancement of libido
19-Oxygenated-androst-5-enes for the enhancement of libido
19-Thio-androstane derivatives
1H-1,2,4-Triazole-3,5-diamine derivatives and use as selective h
1H-Pyrimido[4,5-c]-1,2-diazepines