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A solution of tert-butyl 5-(2-bromo-4-(trifluoromethyl)phenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (2.73 g, 5.98 mmol) in 12 mL THF was treated with methanol (2.421 ml, 59.8 mmol) and was cooled to 0° C. Acetyl chloride (4.25 ml, 59.8 mmol) was added, and the reaction mixture was allowed to stir overnight. LC/MS showed mostly product, so the reaction mixture was concentrated yielding 5-(2-bromo-4-(trifluoromethyl)phenyl)-1,2,3,4-tetrahydroisoquinoline hydrochloride (2.32 g, 5.91 mmol). [M+H]+=357.9.

1. concentrationso the reaction mixture was concentrated