Procédé de préparation d'intermédiaires pour la synthèse de stéroïdes

1,176,248. Des - A - 10 - aza steroids; hexahydroindanes. ROUSSEL-UCLAF. 19 Sept., 1967 [22 Sept., 1966], No. 42579/67. Heading C2C. The invention comprises (a) compounds of Formula (II) (wherein R is alkyl, R1 is H, alkyl or aralkyl, and R4 is H or alkanoyl) and their preparation by reacting a compound of Formula (I) with a compound of formula R2COONH 3 R1 (wherein R2 is alkyl) and, where necessary, treating the resulting product with either an alkanoylating agent or an alkali metal hydrolysing agent; (b) compounds of Formula (III) and their preparation by catalytic hydrogenation of compounds of Formula (II); and (c) a process for preparing compounds of Formula (IV) by acid hydrolysis of compounds of Formula (III)