J. Malmquist, P. Ström
Aug 1, 2012
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Influential Citations
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Journal
Journal of Labelled Compounds and Radiopharmaceuticals
Abstract
Several methods for the preparation of five isotopologues of the CX3CR1 antagonist 1 were developed. Volatile and radioactive 1-chloro- and 1-bromo-ethyl-benzene was handled in [2′-14C] and [3′, 5′-3H] labeling of 1. d-Leucinol ((R)-2-amino-4-methylpentan-1-ol) was labeled as [1-14C] and [4-14C] via a Wittig reaction using Garner's aldehyde and a Strecker amino acid synthesis with d-acylase resolvation, respectively. A [2H10]d-leucinol was used for the stable labeled [M + 10] isotopologue. The products were isolated with 97.6–100% stereo chemical and radiochemical purity as for specific activity 768 GBq/mmol and 1.6–2.0 GBq/mmol, respectively.