申请人:Pfizer Inc.
公开号:US03998954A1
公开(公告)日:1976-12-21
1,3(2H,4H)-Dioxoisoquinoline-4-carboxamides, nuclear unsubstituted and substituted, are prepared by reacting the appropriate homophthalimide with potassium cyanate. Secondary carboxamides are prepared by reacting homophthalimide with appropriate isocyanates, and tertiary carboxamides are prepared by aminolysis of 4-carbalkoxy compounds, which are in turn prepared by alcoholysis of the corresponding 4-carboxanilides. Corresponding 5,6,7,8-tetrahydro compounds are similarly prepared. The various 2-substituted homophthalimides are prepared by reacting homophthalic acid with appropriate amine. The 4-carboxamides are anti-inflammatory agents.
1,3(2H,4H)-二氧化异喹啉-4-羧酰胺,核未取代和取代的,通过将适当的同间苯二酰亚胺与氰酸钾反应制备。次级羧酰胺是通过将同间苯二酰亚胺与适当的异氰酸酯反应制备的,而三级羧酰胺是通过对4-羧烷氧基化合物进行氨解制备的,这些化合物又是通过相应的4-羧基苯胺的醇解制备的。相应的5,6,7,8-四氢化合物同样制备。各种2-取代的同间苯二酰亚胺是通过将同间苯二甲酸与适当的胺反应制备的。4-羧酰胺是抗炎药物。