Department of Drug Metabolism, Merck Research Laboratories, PO Box 2000, Rahway, NJ 07065, USA. conrad_raab@merck.com
Abstract:
The synthesis of the first high specific activity S-35-labeled hERG radioligand, [(35)S]MK-0499, for use in HTS assays of drug candidates for hERG interaction is described. The radioligand is prepared by [(35)S]sulfonylation of a high diastereomeric excess (de) aniline precursor prepared from unlabeled MK-0499.