| 发明名称 |
NOVEL METHOD FOR PRODUCING 4,4'-(1-METHYL-1,2-ETHANEDIYL)-BIS-(2,6-PIPERAZINEDIONE) |
| 摘要 |
A method for preparing compounds of the formula (I) by the cyclization of tetraacetic acid alkyl esters of the formula (II) in the presence of ammonia and formamide as well as to the compounds of the formula (II), which are used in this method. |
| 申请公布号 |
EP2099773(A1) |
申请公布日期 |
2009.09.16 |
| 申请号 |
EP20070845264 |
申请日期 |
2007.11.23 |
| 申请人 |
CYATHUS EXQUIRERE PHARMAFORSCHUNGS GMBH |
发明人 |
KOCH, ANDREAS;NEUFELLNER, ERWIN |
| 分类号 |
C07D241/08;C07C229/16 |
主分类号 |
C07D241/08 |
| 代理机构 |
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