6-Hydroxy and 6-oxo-androstane derivatives having the general formula (I):
wherein the symbol represents a single or a double bond and A, R1 and R2 have the meanings given in the description; a pharmaceutical composition comprising the same and their use for the preparation of a medicament useful for the treatment of cardiovascular disorders such as heart failure and hypertension are disclosed.
[EN] PHOSPHAMIDE DERIVATIVE, METHOD FOR MANUFACTURING THE SAME, AND USES THEREOF<br/>[FR] DÉRIVÉ DE PHOSPHAMIDE, SON PROCÉDÉ DE FABRICATION ET SES UTILISATIONS<br/>[ZH] 一种磷酰胺衍生物及制备方法和用途
We report the synthesis and biological properties of novel inhibitors of the Na(+),K(+)-ATPase as positive inotropic compounds. Following our previously described model from which Istaroxime was generated, the 5alpha,14alpha-androstane skeleton was used as a scaffold to study the space around the basic chain of our lead compound. Some compounds demonstrated higher potencies than Istaroxime on the receptor