Methyl Bromide → (3-{5-Cyano-2-[(R)-6-methoxycarbonyl-7-methyl-3-oxo-8-(3-trifluoromethyl-phenyl)-2,3,5,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidin-5-yl]-phenyl}-propyl)-trimethyl-ammonium bromide

Participants

Reaction Steps

To a solution of Example 12 (2.0 g, 3.70 mmol) in MeCN (10 mL) at 5° C. was added a 26% solution of methyl bromide in acetonitrile (10 mL) drop-wise. The mixture was allowed to warm to room temperature and stirred for 2 hours. The solvent was evaporated in vacuo. The resulting residue was taken up in 30% MeCN in water (30 mL) and freeze dried to yield a white solid (2.05 g).

Provenance & Evidence