Compounds of the general formula:
wherein R1 is aryl which may have 1 to 5 substituent(s) selected from the groups consisting of halogen, lower alkyl, lower alkoxy, lower alkanesulfonamido, mono(or di or tri)-halo(lower)alkyl, carbomoyl, hydroxy, nitro, amino, cyano, sulfamoyl, N,N-di(lower)alkylsulfamoyl, and di(lower- )alkylamino which may form a 3 to 7-membered ring with or without an oxygen or nitrogen atom;
通式如下的化合物
其中 R1 为芳基,可具有 1 至 5 个取代基,这些取代基可选自以下基团:卤素、低级烷基、低级烷
氧基、低级烷磺
酰胺基、单(或二或三)卤(低级)烷基、
碳酰基、羟基、硝基、
氨基、
氰基、
氨基磺酰基、
N,N-二(低级)烷基
氨基磺酰基和二(低级)烷基
氨基,这些取代基可与或不与
氧原子或
氮原子形成 3 至 7 元环;