发明名称 METHOD FOR THE PRODUCTION OF 4,6-DIAMINOPYRIMIDO 5,4-D)PYRIMIDINES
摘要 <p>The present invention relates to a process for preparing 4,6-diaminopyrimido[5,4-d]pyrimidines of formula I,wherein R<1 >to R<4 >have the meanings given in claim 1, as well as new intermediate products which are involved in this process.</p>
申请公布号 SI1383770(T1) 申请公布日期 2005.02.28
申请号 SI20020030048T 申请日期 2002.03.26
申请人 BOEHRINGER INGELHEIM PHARMA GMBH & CO.KG 发明人 RALL WERNER;LOCK RALF;BELZER WERNER
分类号 C07B61/00;C07D487/04;(IPC1-7):C07D487/04 主分类号 C07B61/00
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