申请人:Pfizer Inc.
公开号:US06416979B1
公开(公告)日:2002-07-09
The present invention provides novel 5-substituted picolinic acid compounds of formula (I) or a pharmaceutically acceptable salt thereof:
wherein R1 and R2 are independently H, C2-C6 acyl or halo-substituted benzoyl; and R3 is —C(O)O—C1-C6 alkyl, C(O)OH, CN, CONH2, CONHCH3, CON(CH3)2, 1-methyltetrazole or 2-methyltetrazole, with the proviso that when R2 is acetyl and R3 is methoxycarbonyl, R1 is not H; and that when R3 is CN, CONH2, CONHCH3, CON(CH3)2, 1-methyltetrazole or 2-methyltetrazole, R1 and R2 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)的新型5-取代吡啶甲酸化合物或其药学上可接受的盐:其中R1和R2分别是H、C2-C6酰基或卤代苯甲酰基;R3是—C(O)O—C1-C6烷基、C(O)OH、CN、CONH2、CONHCH3、CON(CH3)2、1-甲基四唑或2-甲基四唑,但当R2为乙酰基且R3为甲氧基羰基时,R1不为H;当R3为CN、CONH2、CONHCH3、CON(CH3)2、1-甲基四唑或2-甲基四唑时,R1和R2为H。本发明还涉及一种包括本发明化合物的药物组合物,其在治疗IL-1和TNF介导的疾病等方面有用。本发明还涉及一种制备式(I)化合物的方法。