In light of the early interest in thiouracils3 and~ racils,~ and more recently, in connection with a study of compounds of possible use as metabolic inhibitors, it was decided to attempt the synthesis of certain pyrimidines containing alkoxy substituents. ized through utilizat. ion of well-established proccdures involving Condensation of substituted acctoacetates with thiourea or urea. During the ireliininary investigations in this work, it was dcnionstrated ...