申请人:Eli Lilly and Company
公开号:US05278307A1
公开(公告)日:1994-01-11
The present invention provides a process for preparing a 4-hydroxypyrrolo[2,3-d]pyrimidine derivative of the formula ##STR1## wherein R is NHC*H(COOR.sup.1)CH.sub.2 CH.sub.2 COOR.sup.1 or OR.sup.1 ; R.sup.1 is H or a carboxyl protecting group; the configuration about the carbon atom designated * is L; n is 0 or 1; and A is an aryl group optionally having, in addition to the COR substituent, one or two substituents selected from the group consisting of halo, hydroxy, C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 alkoxy; or a salt thereof, which comprises (a) halogenating a compound of the formula ##STR2## wherein R, R.sup.1, A and * are as defined above; j is 0 or 1; and (b) reacting 2,4-diamino-6-hydroxypyrimidine, or a salt thereof, with the reaction product from step (a), in the presence of a polar solvent.
本发明提供了一种制备式为##STR1##其中R为NHC*H(COOR.sup.1)CH.sub.2CH.sub.2COOR.sup.1或OR.sup.1;R.sup.1为H或羧基保护基;标记为*的碳原子的构型为L;n为0或1;A为芳基基团,可选地具有除COR取代基外的一或两个取代基,所述取代基选择自卤、羟基、C.sub.1-C.sub.4烷基和C.sub.1-C.sub.4烷氧基;或其盐的4-羟基吡咯并[2,3-d]嘧啶衍生物的过程。该过程包括(a)卤代化式为##STR2##其中R、R.sup.1、A和*如上所定义;j为0或1;(b)在极性溶剂存在下将2,4-二氨基-6-羟基嘧啶或其盐与步骤(a)的反应产物反应。