The pyrimidine derivatives of formula I ##STR1## wherein R.sup.1 is naphthyl, substituted naphthyl or substituted phenyl; R.sup.2 is hydrogen or lower alkoxy; and A is an optionally present ethylene or 1,3-propylene, and wherein the diaminopyridine group has the exo-configuration when A is present, are described. These compounds are useful as antibacterial agents, antimalarial agents and antitumor agents, and can be used in combination with sulfonamides in the control of bacterial infections.
公式I的
嘧啶衍
生物如下:其中R.sup.1是
萘基、取代
萘基或取代苯基;R.sup.2是氢或低碳氧基;A是可选择存在的
乙烯基或1,3-
丙二烯基,当A存在时,二
氨基吡啶基团呈外向构型。这些化合物可用作抗菌剂、抗疟疾剂和抗肿瘤剂,并可与磺
胺类药物结合使用以控制细菌感染。