发明名称 |
SYNTHESIS OF CYCLEN DERIVATIVES |
摘要 |
<p>The invention relates to an improved process for preparation of protected DO3A, such as DO3A-tri-t-butyl ester (1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid tri-t-butyl ester). The compound is prepared as a salt. The process includes a work-up procedure giving DO3A-tri-t-butyl ester as a salt of excellent purity.</p> |
申请公布号 |
WO2006112723(A1) |
申请公布日期 |
2006.10.26 |
申请号 |
WO2006NO00141 |
申请日期 |
2006.04.18 |
申请人 |
GE HEALTHCARE AS;AXELSSON, OSKAR;OLSSON, ANDREAS |
发明人 |
AXELSSON, OSKAR;OLSSON, ANDREAS |
分类号 |
C07D257/02;C07D |
主分类号 |
C07D257/02 |
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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