The present invention relates to a new synthesis for the preparation of 5-(substituted benzyl)-2,4-diamino-pyrimidines, including new pyrimidine derivatives. More particularly, a new synthesis of ormetoprin, diaveridine and related compounds, including novel derivatives, is disclosed. The synthesis involves the condensation of a substituted benzene and an acrylonitrile derivative to directly give enol ether intermediates, which upon subsequent reaction by known techniques with guanidine, provides the desired 5-(substituted benzyl)-2,4-diamino-pyrimidines, including novel compounds. The pyrimidine end products are useful as potentiators of sulfonamides and as antibacterial agents.
                            本发明涉及一种新的合成方法,用于制备5-(取代苯基)-2,4-二
氨基嘧啶,包括新的
嘧啶衍
生物。更具体地,本发明揭示了ormetoprin、diaveridine和相关化合物的新合成方法,包括新的衍
生物。该合成方法涉及将取代苯和
丙烯腈衍
生物缩合,直接得到烯醚中间体,随后通过已知技术与
胍反应,得到所需的5-(取代苯基)-2,4-二
氨基嘧啶,包括新的化合物。
嘧啶末端产物可用作磺
胺类药物的增效剂和抗菌剂。