A pyrimidine derivative of the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 which may be the same or different is an alkyl group, or R.sup.1 and R.sup.2 together with the adjacent carbon atom form a ring.
一种
嘧啶衍
生物的
化学式为:##STR1## 其中R.sup.1和R.sup.2分别为烷基基团,可能相同也可能不同,或者R.sup.1和R.sup.2与相邻的碳原子共同形成一个环。