申请人:USV PHARMACEUTICAL CORPORATION
公开号:EP0039920A2
公开(公告)日:1981-11-18
Anti-allergic compounds of the formulae
wherein,
X is S or O;
R1 and R2 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, sulfonamido, halogen, alkoxy, alkenyloxy, alkynyloxy, cyano, hydroxy, acyloxy, nitro, amino, alkylamino, alkanoylamino, carbalkoxyamino, methanesulfonyl, carboxy, carbalkoxy, trihalomethyl, or taken together, methylenedioxy;
R3 and R4 is hydrogen, alkyl, alkenyl, alkynyl, aryl, acyl, aralkyl, cycloalkyl, cycloalkyl CH2-, or carbalkoxy; and
Z forms a heterocyclic ring with the two carbon atoms to which it is attached;and intermediates for their preparation.
式中的抗过敏化合物
其中
X 是 S 或 O;
R1和R2是氢、烷基、烯基、炔基、环烷基、芳基、芳烷基、磺酰胺基、卤素、烷氧基、烯氧基、炔氧基、氰基、羟基、酰氧基、硝基、氨基、烷基氨基、烷酰氨基、碳烷氧基氨基、甲磺酰基、羧基、碳烷氧基、三卤甲基或合起来是亚甲二氧基;
R3 和 R4 是氢、烷基、烯基、炔基、芳基、酰基、芳烷基、环烷基、环烷基 CH2- 或碳烷氧基;以及
Z 与所连接的两个碳原子形成杂环;以及制备这些物质的中间体。