申请人:——
公开号:US20020010334A1
公开(公告)日:2002-01-24
A process for the preparation of a compound of formula I
1
comprising the steps of forming an 1-unsubstituted pyrimidinedione by reacting under basic conditions either a carbamate or an isocyanate with an alkenoate and forming a compound of formula I by alkylating, aminating, haloalkylating, alkylnitrilating, arylating, allylating, alkylalkoxylating, alkylcarboxylating, or propargylating the 1-position of said unsubstituted pyrimidinedione by adding an adduct forming agent selected from the group consisting of alkylating, aminating, haloalkylating, alkylnitrilating, arylating, allylating, alkylalkoxylating, alkylcarboxylating, and propargylating agents; where the 1-unsubstituted pyrimidinedione, the carbamate, the isocyanate, the alkenoate, and substituents V, W, X, Y, Z, and R are described herein. The reactions as described herein are carried out in a single reaction vessel and often produce the pyrimidindione of formula I in near quantitative yields. It is emphasized that his abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims (see 37 C.F.R. 1.72(b)).
一种制备I式化合物的方法,包括以下步骤:在碱性条件下,通过将碳酸酯或异氰酸酯与烯酸酯反应形成1-未取代嘧啶二酮,然后通过烷基化、氨基化、卤代烷基化、烷基腈化、芳基化、烯丙基化、烷基烷氧基化、烷基羧基化或丙炔基化1-位置上的未取代嘧啶二酮形成I式化合物,通过添加从烷基化、氨基化、卤代烷基化、烷基腈化、芳基化、烯丙基化、烷基烷氧基化、烷基羧基化或丙炔基化试剂组成的加合物形成剂进行。其中,所述1-未取代嘧啶二酮、碳酸酯、异氰酸酯、烯酸酯和取代基V、W、X、Y、Z和R如本文所述。所述的反应在单个反应容器中进行,并且通常以接近定量产率产生I式嘧啶二酮。强调此摘要是为了遵守要求提供一个允许搜索者或其他读者快速确定技术披露主题的摘要的规则。提交此摘要时应理解,它不会被用来解释或限制权利要求的范围或含义(参见37 C.F.R. 1.72(b))。