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    • 5. 发明授权
    • Method of producing a quinolonecarboxylic acid derivative
    • 制备喹诺酮羧酸衍生物的方法
    • US5869661A
    • 1999-02-09
    • US339404
    • 1994-11-17
    • Kiyoshige OchiHirohito Shimizu
    • Kiyoshige OchiHirohito Shimizu
    • C07D215/56C07D265/28C07D291/04C07D295/155
    • C07D215/56C07D265/28C07D291/04C07D295/155
    • The present invention is a method of producing a 6-fluoro-7-substituted quinolonecarboxylic acid derivative represented by the general formula (4): ##STR1## wherein the variables are defined in the specification, which is characterized by adding an alkylboric acid ester represented by the general formula (3):B (OR.sub.5).sub.3 (3)wherein R.sub.5 represents a lower alkyl group, an aryl group, a substituted aryl group or a substituted aralkyl group to a 6-fluoroquinolonecarboxylic acid derivative represented by the general formula (1): ##STR2## wherein R.sub.1 and R.sub.2 are as defined in the specification; and R.sub.3 represents an optional, functional residue capable of participating in a nucleophilic substitution reaction, and a substituted saturated heterocyclic amine represented by the general formula (2): ##STR3## wherein X, Y and n are as defined in the specification, and condensing the reaction mixture with heating.
    • 本发明是由通式(4)表示的6-氟-7-取代喹诺酮羧酸衍生物的制造方法,其特征在于,加入通式(3)表示的烷基硼酸酯: B(OR 5)3(3)其中R 5表示通式(1)表示的6-氟喹诺酮羧酸衍生物的低级烷基,芳基,取代的芳基或取代的芳烷基: )其中R1和R2如说明书中所定义; 和R3表示任选的能够参与亲核取代反应的官能残基,以及由通式(2)表示的取代的饱和杂环胺:其中X,Y和n如说明书中所定义。 ,并加热反应混合物。