Syntheses in the Cardiac Aglycone Field. III.1 The Conversion of a 14α- to a 14β-Hydroxy Group in the Androstane Series. The Ultraviolet Spectra of Δ15-Androsten-17-ones
New hydrazino and hydroxyamino-14beta-hydroxyandrostane derivatives active on the cardio-vascular system, processes for their preparation and pharmaceutical compositions containing same