Synthesis of a Bifunctional Monophosphinate DOTA Derivative Having a Free Carboxylate Group in the Phosphorus Side Chain
作者:Petr Hermann、Pavel Řezanka、Vojtěch Kubíček、Ivan Lukeš
DOI:10.1055/s-2008-1072571
日期:2008.5
A new bifunctional cyclen-based ligand, 3-[hydroxy(4,7,10-tris[( TERT-butoxycarbonyl)methyl]-1,4,7,10-tetraazacyclododecan-1-yl}methyl)phosphoryl]propanoic acid, was synthe-sized by alkylation of tri- TERT-butyl 1,4,7,10-tetraazacyclododecane-1,4,7-triacetate ( T-Bu 3 DO3A) by ethyl 3-ethoxy[(mesyloxy)methyl]phosphoryl}propanoate [MsOCH 2 P(O)(OEt)CH 2 CH 2 CO 2 Et]. The ethyl carboxylate group in
一种新的双功能环烯基配体,3-[羟基(4,7,10-三[(叔丁氧基羰基)甲基]-1,4,7,10-四氮杂环十二烷-1-基}甲基)磷酰基]丙酸, 由 3-乙氧基[(甲磺氧基)甲基]磷酰基三叔丁酯 1,4,7,10-四氮杂环十二烷-1,4,7-三乙酸 (T-Bu 3 DO3A) 烷基化合成}丙酸酯[MsOCH 2 P(O)(OEt)CH 2 CH 2 CO 2 Et]。将侧链中的羧酸乙酯基团选择性去保护,得到酯化双功能配体。设计了一些膦基丙酸衍生物的更有效的合成方法,并以次磷酸或其盐为原料制备了磷烷基化试剂。