申请人:Pfizer Inc.
公开号:US06034107A1
公开(公告)日:2000-03-07
The present invention provides novel 5-substituted picolinic acid compounds of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein R.sup.1 and R.sup.2 are independently H, C.sub.2 -C.sub.6 acyl or halo-substituted benzoyl; and R.sup.3 is --C(O)O--C.sub.1 -C.sub.6 alkyl, C(O)OH, CN, CONH.sub.2, CONHCH.sub.3, CON(CH.sub.3).sub.2, 1-methyltetrazole or 2-methyltetrazole, with the proviso that when R.sub.2 is acetyl and R.sup.3 is methoxycarbonyl, R.sup.1 is not H; and that when R.sup.3 is CN, CONH.sub.2, CONHCH.sub.3, CON(CH.sub.3).sub.2, 1-methyltetrazole or 2-methyltetrazole, R.sup.1 and R.sup.2 are H. The present invention also relates to a pharmaceutical composition comprising compound of the present invention, which is useful in the treatment of IL-1 and TNF mediated diseases or the like. The present invention further relates to a process for producing the compounds of the formula (I).
本发明提供了式(I)或其药学上可接受的盐的新型5-取代吡啶甲酸化合物: ##STR1## 其中R.sup.1和R.sup.2独立地为H、C.sub.2-C.sub.6酰基或卤代苯甲酰基; R.sup.3为--C(O)O--C.sub.1-C.sub.6烷基、C(O)OH、CN、CONH.sub.2、CONHCH.sub.3、CON(CH.sub.3).sub.2、1-甲基四氮唑或2-甲基四氮唑,但当R.sub.2为乙酰基且R.sup.3为甲氧羰基时,R.sup.1不为H;当R.sup.3为CN、CONH.sub.2、CONHCH.sub.3、CON(CH.sub.3).sub.2、1-甲基四氮唑或2-甲基四氮唑时,R.sup.1和R.sup.2为H。本发明还涉及包含本发明化合物的制药组合物,用于治疗IL-1和TNF介导的疾病或类似疾病。本发明还涉及制备式(I)化合物的方法。