AZABICYCLO COMPOUND DERIVATIVES

摘要

Azabicycloamine compounds and their salts of formula (I) are prepared. In the formula (I), R=H or amine protecting groups; R1,R2=H, lower alkyl, acyl, substituted (or unsubstituted) benzoyl, or naphtoyl, alkoxycarbonyl or substituted (or unsubstituted) benzyloxycarbonyl; n = 1-4. (I) are useful as intermediates in the preparation of antibacterial quinolone carboxylic acid derivatives, cephalosporin antibiotics and other drugs.