| 摘要 |
17-Aza-16-keto-steroids - useful as intermediates. Title steroids have formula (I) and (Ia): (where R is free or masked oxo or is H and a free or masked hydroxy gp.; R1 is H or 1-4 C alkyl, and R2 is alkoxy) and are key inters. for therapeutically valuable bactericides and bacteriostats and hypocholesterolaemics. |
