Intermediates useful for preparing 4,6-diaminopyrido[5,4-d]pyrimidines
    43.
    发明授权
    Intermediates useful for preparing 4,6-diaminopyrido[5,4-d]pyrimidines 有权
    可用于制备4,6-二氨基吡啶并[5,4-d]嘧啶的中间体

    公开(公告)号:US06849734B2

    公开(公告)日:2005-02-01

    申请号:US10670535

    申请日:2003-09-25

    IPC分类号: C07B61/00 C07D487/04

    CPC分类号: C07D487/04

    摘要: 2-Chloro-4,6-diamino-7,8-dihydropyrimido[5,4-d]pyrimidine of the formula II wherein R1 denotes a hydrogen atom or a C1-C6 alkyl group, R2 denotes an optionally substituted C6-C10 aryl group, R3 denotes a hydrogen atom or a C1-C6 alkyl group, and R4 denotes a hydrogen atom or an optionally substituted C1-C6 alkyl, C3-C6 alkenyl, C3-C8 cycloalkyl or a 4- to 7-membered, nitrogen-containing heterocyclyl group, or R3 and R4 together with the nitrogen atom linked to them denote an optionally substituted heterocyclyl group, and PG1 denotes a C1-6 alkanoyl group.

    摘要翻译: 式II的2-氯-4,6-二氨基-7,8-二氢嘧啶并[5,4-d]嘧啶,其中R 1表示氢原子或C 1 -C 6烷基,R 2表示任选取代的 C 6 -C 10芳基,R 3表示氢原子或C 1 -C 6烷基,R 4表示氢原子或任选取代的C 1 -C 6烷基,C 3 -C 6烯基,C 3 -C 8环烷基或 4至7元含氮杂环基或R 3和R 4与连接于它们的氮原子一起表示任选取代的杂环基,并且G 1表示C 1-6烷酰基。

    Process for preparing 4,6-diaminopyrimido[5,4-d]pyrimidines
    44.
    发明授权
    Process for preparing 4,6-diaminopyrimido[5,4-d]pyrimidines 有权
    制备4,6-二氨基嘧啶并[5,4-d]嘧啶的方法

    公开(公告)号:US06680384B2

    公开(公告)日:2004-01-20

    申请号:US10095926

    申请日:2002-03-12

    IPC分类号: C07D48704

    CPC分类号: C07D487/04

    摘要: The present invention relates to a process for preparing 4,6-diaminopyrimido[5,4-d]pyrimidines of formula I, wherein R1 to R4 have the meanings given in claim 1, as well as new intermediate products which are involved in this process.

    摘要翻译: 本发明涉及制备式I的4,6-二氨基嘧啶并[5,4-d]嘧啶的方法,其中R 1至R 4具有权利要求1中给出的含义,以及新的中间产物 这涉及到这个过程。