Compound (I) is reacted with compound (II) to give compound (III), which is then reacted with compound (IX) to give compound (VIII), which is then preferably deprotected by an enzyme reaction to give compound (XII). The present invention provides an advantageous process for preparing a pyrimidine derivative useful as an enzyme inhibitor, and a synthetic intermediate:
wherein P is an alkyl group and the like, R1 and R2 are alkyl groups and the like, R3 is an alkyl group optionally having substituent(s) and the like, R4 is a hydrogen atom and the like, R5 is an aralkyl group optionally having substituent(s) and the like, and Y is a heteroaryl group optionally having substituent(s) and the like.
化合物(I)与化合物(II)发生反应得到化合物(III),然后与化合物(IX)发生反应得到化合物(VIII),然后最好通过酶反应去保护得到化合物(XII)。本发明提供了一种有利的制备
嘧啶衍
生物的方法,该衍
生物可用作酶
抑制剂,以及一种合成中间体:其中P为烷基基团等,R1和R2为烷基基团等,R3为可选地具有取代基的烷基基团等,R4为氢原子等,R5为可选地具有取代基的芳基烷基基团等,Y为可选地具有取代基的杂环芳基基团等。