Process for the preparation of 5-substituted cytosines and other 4,5-disubstituted pyrimidin-2(1H)-ones, and intermediates arising in the course of this The process for the preparation of compounds of the formula I, ##STR1## wherein compounds of the formula II ##STR2## are converted into an azole derivative of the formula III or an azine derivative of the formula IV ##STR3## which can subsequently be converted into a compound of the formula I using a nucleophile XH.
制备5-取代
胞嘧啶和其他4,5-二取代
嘧啶-2(1H)-酮的方法,以及在此过程中产生的中间体。制备式I的化合物的方法,其中式II的化合物被转化为式III的唑类衍
生物或式IV的
噁唑类衍
生物,随后可以使用亲核试剂XH将其转化为式I的化合物。