Processes for the production of the compounds of the formula: ##STR1## are disclosed. In the above formula, R.sub.1 is aryl which may be substituted or unsubstituted; R.sub.2 is hydrogen, alkyl, aryl, aralkyl, alkoxy, halogen, cyano, nitro, trifluoromethyl and the like. These compounds are prepared by the following reaction schemes: ##STR2## These compounds are useful as anti-inflammatory agents.
本发明公开了制备下式化合物的工艺:##STR1##
在上述式中,R.sub.1是芳基,可以是取代或未取代的;R.sub.2是氢,烷基,芳基,芳基烷基,烷氧基,卤素,
氰基,硝基,三
氟甲基等。这些化合物是通过以下反应方案制备的:##STR2##
这些化合物可用作抗炎药。