Process for substituted pyridines
    1.
    发明授权
    Process for substituted pyridines 失效
    取代吡啶的方法

    公开(公告)号:US06291489B1

    公开(公告)日:2001-09-18

    申请号:US09297694

    申请日:1999-05-05

    IPC分类号: C07D21375

    CPC分类号: C07D213/73 C07D213/75

    摘要: This invention relates to processes for preparing compounds of the formula (I) and to processes for preparing certain intermediates of the formula wherein R1 is nitro, amino or protected amino; R2 is H, fluoro, chloro CF3, nitro, (C1-C4)alkyl, (C1-C4)alkoxy, amino or protected amino; and X1 is OH or a suitable leaving group, used in that process. The invention also relates novel to compounds of the formulae (II).

    摘要翻译: 本发明涉及制备式(I)化合物的方法及其制备方法,其中R1是硝基,氨基或被保护的氨基; R2是H,氟,氯,CF3,硝基,(C1-C4)烷基,(C1-C4)烷氧基,氨基或被保护的氨基; 并且X1是OH或合适的离去基团,用于该方法。 本发明还涉及新颖的式(II)化合物。