| 摘要 |
<p>The present invention provides novel 5-substituted picolinic acid compounds of formula (I) or a pharmaceutically acceptable salt thereof: <CHEM> wherein R<1> and R<2> are independently H, C2-C6 acyl or halo-substituted benzoyl; and R<3> 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 R<3> is methoxycarbonyl, R<1> is not H; and that when R<3> is CN, CONH2, CONHCH3, CON(CH3)2, 1-methyltetrazole or 2-methyltetrazole, R<1> and R<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).</p> |
