Synthesis, radiosynthesis and in vivo evaluation in mice of [123I]-(4-fluorophenyl) {1-[2-(4-iodophenyl)ethyl]piperidin-4-yl}methanone for visualization of the 5-HT2A receptor with SPECT

Add time:07/14/2019    Source:sciencedirect.com

This work reports the synthesis, radiolabelling and preliminary in vivo evaluation of [123I]-(4-fluorophenyl){1-[2-(4-iodophenyl)ethyl]piperidin-4-yl}methanone. The tributylstannylprecursor was synthesized with a yield of 30%. Radiolabelling was performed using an electrophilic iododestannylation. Tracer yield was 80%, radiochemical purity was>95% and specific activity was at least 55 Ci/μmol. Log P was 1.5. The tracer showed uptake in mice brain (2.72% ID/g tissue at 5 min p.i.) and therefore will be evaluated further by regional brain biodistribution and displacement studies in rabbits.

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