发明名称 |
PROCESS FOR PRODUCING 2,6-DIHALOGENOPURINE |
摘要 |
<p>A process for conveniently and efficiently preparing a 2,6-halogenopurine using an inexpensive starting material. A process for preparing a 2,6-dihalogenopurine, comprising treating a 2-amino-6-halogenopurine having a protective group at 7th position or 9th position with a diazotizating agent and a halogen source; and a process for preparing a 9-acyl-2-amino-6-halogenopurine, comprising treating a 2-amino-6-halogenopurine with an acylating agent in the presence of a base.</p> |
申请公布号 |
EP1375502(B1) |
申请公布日期 |
2007.06.13 |
申请号 |
EP20020717061 |
申请日期 |
2002.04.03 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
MASAI,NARUHITO;HAYASHI,T.;KUMAZAWA,H.;NISHIKAWA,J.;BARTA, ISTVAN;KAWAKAMI,T. |
分类号 |
C07D473/40 |
主分类号 |
C07D473/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|