Stereochemical influence on the stability of radio-metal complexes in vivo. Synthesis and evaluation of the four stereoisomers of 2-(p-nitrobenzyl)-trans-CyDTPA
作者:C. Wu、H. Kobayashi、B. Sun、T.M. Yoo、C.H. Paik、O.A. Gansow、J.A. Carrasquillo、I. Pastan、M.W. Brechbiel
DOI:10.1016/s0968-0896(97)00130-2
日期:1997.10
stability of the two diastereomeric C-Functionalized CyDTPA chelating agents, (CHX-A DTPA and CHX-B DTPA, both racemates), as recently reported prompted further investigation as to why differences in configuration produced striking effects on the in vivo stability of their yttrium complexes. To this end, the four individual component stereoisomers of CHX-A and CHX-B were synthesized and ability to bind
两种非对映体C功能化CyDTPA螯合剂(CHX-A DTPA和CHX-B DTPA,均为外消旋物)在体内稳定性方面存在明显差异,正如最近报道的那样,这促使人们进一步进行调查,以研究为什么构型差异会对内含子产生显着影响钇配合物的体内稳定性。为此,合成了CHX-A和CHX-B的四个单独的组分立体异构体,并在体外和体内研究了结合钇的能力。