申请人:Takeda Chemical Industries, Ltd.
公开号:US04423219A1
公开(公告)日:1983-12-27
Improved processes for producing purine derivatives, such as 9-(2-chloro-6-fluorobenzyl)-6-methylaminopurine, which are useful as anticoccidial agents, and new arylazopyrimidine compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, C.sub.1-3 alkyl, allyl or dihalobenzyl, and when either one of R.sup.1 and R.sup.2 is hydrogen, the other is other than hydrogen, and R.sup.3 is aryl, and acid addition salts thereof, which are useful as intermediates for production of the purine derivatives.
改进的生产嘌呤衍生物的过程,例如9-(2-氯-6-氟苯基)-6-甲基氨基嘌呤,这些衍生物可用作抗球虫剂,以及新的芳基偶氮嘧啶化合物,其化学式为:##STR1## 其中R.sup.1和R.sup.2分别为氢、C.sub.1-3烷基、烯丙基或二卤苯基,当R.sup.1和R.sup.2中的任一者为氢时,另一个不是氢,R.sup.3为芳基,以及它们的酸盐加合物,这些化合物可用作生产嘌呤衍生物的中间体。