Milicevic Sephton S, Miklovicz T, Russell JJ, Doke A, Li L, Boros I, Aigbirhio FI. Automated radiosynthesis of [
11 C]UCB-J for imaging synaptic density by positron emission tomography.
J Labelled Comp Radiopharm 2020;
63:151-158. [PMID:
32027052 PMCID:
PMC7155065 DOI:
10.1002/jlcr.3828]
[Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 01/20/2023]
Abstract
An automated radiosynthesis of carbon-11 positron emission tomography radiotracer [11 C]UCB-J for imaging the synaptic density biomarker synaptic vesicle glycoprotein SV2A was established using Synthra RNPlus synthesizer. Commercially available trifluoroborate UCB-J analogue was used as a radiolabelling precursor, and the desired radiolabelled product was isolated in 11 ± 2% (n = 7) nondecay corrected radiochemical yield and formulated as a 10% EtOH solution in saline with molar activities of 20 to 100 GBq/μmol. The method was based upon the palladium(0)-mediated Suzuki cross-coupling reaction and [11 C]CH3 I as a radiolabelling synthon. The isolated product was cGMP compliant as demonstrated by the results of quality control analysis.
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