abstract |
PROCEDURE FOR THE PREPARATION OF 3-OXO-17BAB-PREGN-4-EN-21,17-CARBOLACTONES SUBSTITUTED IN 7BAB. , TO OBTAIN A COMPOUND OF FORMULA (I). BEING R, SR; R, H; (III), A SINGLE LINK C-C OR A DOUBLE LINK C-C AND OTHERS; (IV), A SIMPLE LINK CC AND OTHERS, AND R, (III) AND (IV). ARE USED FOR THE TREATMENT OF HYPERTONIA. |