This invention relates to bicyclic amino group-substituted pyridonecarboxylic acid derivatives of the general formula
A-Pri,
esters thereof and salts thereof, wherein:
Pri is a pyridonecarboxylic acid residue, and
A is a bicyclic amino group represented by the following formula and joined to the 7-position of the pyridonecarboxylic acid or a position equivalent to the 7-position thereof.
wherein R1 and R2 may be the same or different and each represents a hydrogen atom, a lower alkyl group or an amino-protecting group; R3 and R4 may be the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, an oxo group, a lower alkoxy group or a lower alkyl group; and n is an integer of 0 or 1.
The above-described pyridonecarboxylic acid derivatives, esters thereof and salts thereof are useful as antibacterial agents.
This invention also relates to bicyclic amine compounds useful as direct intermediates for the synthesis of the above-described pyridonecarboxylic acid derivatives.
本发明涉及通式如下的双环
氨基取代的
吡啶羧酸衍
生物
A-Pri、
及其酯和盐,其中
Pri 是
吡啶羧酸残基,以及
A 是下式所代表的双环
氨基,与
吡啶羧酸的 7 位或相当于其 7 位的位置相连。
其中 R1 和 R2 可以相同或不同,各自代表氢原子、低级烷基或
氨基保护基团;R3 和 R4 可以相同或不同,各自代表氢原子、卤素原子、
氰基、羟基、氧代基团、低级烷氧基或低级烷基;n 为 0 或 1 的整数。
上述
吡啶羧酸衍
生物、其
酯类和盐类可用作抗菌剂。
本发明还涉及作为合成上述
吡啶羧酸衍
生物的直接中间体的双环胺化合物。