NODAPA-OH and NODAPA-(NCS)n: Synthesis, 68Ga-radiolabelling and in vitro characterisation of novel versatile bifunctional chelators for molecular imaging
摘要:
This report concerns synthesis, (68)Ga-radiolabelling and stability data of 1,4,7-triazacyclononane-1,4-diacetic acid-7-p-isothio-cyanatophenyl-acetic acid (NODAPA-NCS), 1,4,7-triazacyclononane-1-acetic acid-4,7-di-p-isothiocyanatophenyl-acetic acid (NODAPA-(NCS) 2) and 1,4,7-triazacyclononane-1,4-diacetic acid-7-p-hydroxyphenyl-acetic acid (NODAPA-OH), versatile bifunctional chelators with potential for molecular imaging. Protein binding and exemplified conjugation are also reported. (C) 2008 Elsevier Ltd. All rights reserved.
The present invention relates to a method for complexation of a chelate with a radionuclide, advantageously gallium, the complexation being carried out advantageously at ambient temperature without heating, by adding the radionuclide to the chelate in a buffer solution, the buffer of this solution comprising between two and five functions for coordination with the radionuclide, each coordination function being independently chosen from a carboxylic acid function and a hydroxyl function, on the condition that the buffer comprises at least one carboxylic acid function and at most two carboxylic acid functions. It also relates to the injectable solution obtained.
COMPLEX FOLATE-NOTA-Ga68
申请人:PORT Marc
公开号:US20120064003A1
公开(公告)日:2012-03-15
The present invention concerns a Ga68 complex of formula FOLATE-(LINKER)i-NOTA-Ga
68
in which:
1) FOLATE is a folate compound or a derivative thereof capable of targeting a folate receptor,
2) NOTA is a chelate capable of complexing Ga68 having a NOTA scaffold or derivatives thereof
3) LINKER is a chemical group linking FOLATE and NOTA
4) i is an integer chosen between 0 and 1
wherein NOTA is complexing Ga68
US8986650B2
申请人:——
公开号:US8986650B2
公开(公告)日:2015-03-24
NODAPA-OH and NODAPA-(NCS)n: Synthesis, 68Ga-radiolabelling and in vitro characterisation of novel versatile bifunctional chelators for molecular imaging
作者:Patrick J. Riss、Carsten Kroll、Verena Nagel、Frank Rösch
DOI:10.1016/j.bmcl.2008.09.054
日期:2008.10
This report concerns synthesis, (68)Ga-radiolabelling and stability data of 1,4,7-triazacyclononane-1,4-diacetic acid-7-p-isothio-cyanatophenyl-acetic acid (NODAPA-NCS), 1,4,7-triazacyclononane-1-acetic acid-4,7-di-p-isothiocyanatophenyl-acetic acid (NODAPA-(NCS) 2) and 1,4,7-triazacyclononane-1,4-diacetic acid-7-p-hydroxyphenyl-acetic acid (NODAPA-OH), versatile bifunctional chelators with potential for molecular imaging. Protein binding and exemplified conjugation are also reported. (C) 2008 Elsevier Ltd. All rights reserved.