Trifluoromethylsulfonamide → HCID 66654424, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-1-(2-carboxymethoxy-5-chloro-phenyl)-3,4-dihydro-1H-isoquinoline-2-carboxylic acid benzyl ester (138 mg, 0.30 mmol, 1.0 eq.) in DMF (1.2 mL), trifluoromethanesulfonamide (47 mg, 0.30 mmol, 1.0 eq.), HATU (125 mg, 0.33 mmol, 1.1 eq.), DIPEA (103 μL, 0.60 mmol, 2.0 eq.), and DMAP (spatula tip) were added. The resulting mixture was stirred at 50° C. for 18 hours. The mixture was then purified by prep. HPLC (column: Waters XBridge, 30×75 mm, 10 um, UV/MS, basic conditions) and evaporated to give a white-off solid, contaminated with some DIPEA. The contaminated product was redissolved in AcOEt and washed with 1M aq. HCl soln. and sat. aq. NaCl soln. The org. phase was dried over MgSO4, filtered, and concentrated in vacuo to give the desired product as a white-off solid.

Provenance & Evidence