pregnenolone 21-pyridinium iodide

N,N-diethyl-3-oxo-4-androstene-17β-carboxamide

17B-N,N-diethylcarbamoyl-4-aza-5-androsten-3-one

17β-(diethylcarbamoyl)-5-oxo-A-nor-3,5-secoandrostan-3-oic acid

N,N-diethyl-3-methoxy-4-aza-5α-androst-3-ene-17β-carboxamide