发明名称 |
PROCESSES FOR THE PREPARATION OF 4(5)-AMINO-5(4)-CARBOXAMIDOIMIDAZOLES AND INTERMEDIATES THEREOF |
摘要 |
<p>The invention provides novel processes for preparing efficiently compounds of general formula (I) (wherein R1 and R2 are each independently hydrogen, optionally substituted C1-C10 alkyl, C3-C14 hydrocarbyl bearing an alicyclic skeleton, or the like) and intermediates thereof. Compounds of general formula (I) can be prepared by subjecting compounds of general formula (II) and/or salts thereof to cyclization hydrolysis in an aqueous basic solution. Further, compounds of general formula (II) can be prepared from industrially easily available diaminomaleonitrile in a high yield. <CHEM></p> |
申请公布号 |
EP1215206(A1) |
申请公布日期 |
2002.06.19 |
申请号 |
EP20000961096 |
申请日期 |
2000.09.20 |
申请人 |
NIPPON SODA CO., LTD.;IBARAKI KASEI CO., LTD. |
发明人 |
SHIBASAKI, HIROAKI;NAGASAKI, FUMIHIKO;TAKASE, MITSURU;YAMAZAKI, SATORU;ISHII, YUTAKA;OOHATA, KIMIHIKO |
分类号 |
C07C257/14;C07D233/70;C07D233/90;(IPC1-7):C07D233/90 |
主分类号 |
C07C257/14 |
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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