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公开(公告)号:US5623078A
公开(公告)日:1997-04-22
申请号:US666742
申请日:1996-06-20
IPC分类号: C07D209/52 , C07D209/02
CPC分类号: C07D209/02
摘要: A production process with good efficiency, and applicable to production of a synthetic intermediate of a new quinolone anti-fungus agent CP-99219, is provided.A production process of an intermediate of a new quinolone compound expressed by the formula (IV) ##STR1## wherein R.sup.3 represents a benzyl group, a diphenylmethyl group, etc. and R.sup.4 represents a linear or branched alkyl group of 1 to 8C, a cycloalkyl group, etc.which process employs as a starting substance, a cyclopropanetricarboxylic acid triester expressed by the formula (I) ##STR2## wherein R.sup.1 and R.sup.2 represent a linear or branched alkyl group, a cycloalkyl group, an aryl group or an aralkyl group,and passes through seven steps.
摘要翻译: 提供了一种效率高,适用于生产新型喹诺酮类抗真菌剂CP-99219的合成中间体的生产方法。 由式(IV)表示的新型喹诺酮化合物的中间体(IV)的制备方法,其中R 3表示苄基,二苯基甲基等,R 4表示1〜8的直链或支链烷基 ,该方法用作起始物质的环烷基等,由式(I)表示的环丙烷三羧酸三酯,支化烷基,环烷基,芳基或芳烷基,并通过七个步骤。