A facile method has been developed for the preparation of densely functionalized tricyclic fused pyrimidine derivatives by three-component [3+2+1] cyclization. Fairly good yields of the products (up to 88%), the ready availability of the low-cost starting materials, the catalyst-free and mild conditions are the main advantages of this method.
已经开发了一种通过三组分[3 + 2 + 1]环化来制备致密官能化的
三环稠合
嘧啶衍
生物的简便方法。该方法的主要优点是产品的收率相当好(高达88%),低成本原料的现成可获得性,无催化剂和温和的条件。