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.
本文描述了公式##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
生物的制备方法,其起始物为相应的4-氧代
噻吩-[3,2-d]
嘧啶衍
生物。