Antiallergically-active pyrimidine derivatives of the formula ##STR1## wherein R.sup.1 is hydrogen, chlorine, bromine or C.sub.1-4 -alkyl, and R.sup.2 is hydrogen or methyl, prepared starting from corresponding 4-oxothieno[3,2-d]pyrimidine derivatives, are described.
本文介绍了公式## STR1##中R.sup.1为氢,
氯,
溴或C.sub.1-4-烷基,R.sup.2为氢或甲基的抗过敏活性
嘧啶衍
生物,其制备是从相应的4-氧代
噻吩[3,2-d]
嘧啶衍
生物开始。