Cross-coupling;
Vortioxetine;
PET;
Carbon-11;
Palladium;
POSITRON-EMISSION-TOMOGRAPHY;
SEROTONIN TRANSPORTER;
5-HT3;
RECEPTOR;
HUMAN BRAIN;
LU AA21004;
ANTIDEPRESSANTS;
LOCALIZATION;
DEPRESSION;
BINDING;
METHYL;
D O I:
10.1016/j.bmcl.2014.04.044
中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
Vortioxetine is a new multi-modal drug against major depressive disorder with high affinity for a range of different serotonergic targets in the CNS. We report the C-11-labeling of vortioxetine with [C-11] MeI using a Suzuki-protocol that allows for the presence of an unprotected amine. Preliminary evaluation of [C-11] vortioxetine in a Danish Landrace pig showed rapid brain uptake and brain distribution in accordance with the pharmacological profile, all though an unexpected high binding in cerebellum was also observed. [C-11] vortioxetine displayed slow tracer kinetics with peak uptake after 60 min and with limited wash-out from the brain. Further studies are needed but this radioligand may prove to be a valuable tool in unraveling the clinical effects of vortioxetine. (C) 2014 Elsevier Ltd. All rights reserved.