发明名称 |
Process for the preparation of dihaloazolopyrimidines. |
摘要 |
An effective and efficient process for the preparation of a dihaloazolopyrimidine having the structural formula <CHEM> In this process, a malonic acid ester is reacted with a heterocyclylamine to form an intermediate salt, which optionally may be acidified to form a dihydroxyazolopyrimidine; the salt or the dihydroxyazolopyrimidine is then halogenated. |
申请公布号 |
ZA9608957(B) |
申请公布日期 |
1998.04.24 |
申请号 |
ZA19960008957 |
申请日期 |
1996.10.24 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
GUENTER KRUMMEL;KARL-OTTO STUMM;KLAUS-JUERGEN PEES;PETER HEINZ RUDI LIERS |
分类号 |
C07D487/04 |
主分类号 |
C07D487/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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