Trifluoroacetic acid → (R)-3-(2-chlorobenzamido)-N-methyl-N-(piperidin-4-yl)-2,3-dihydro-1H-indene-5-carboxamide

Participants

Reaction Conditions

Reaction Steps

(R)-tert-Butyl 4-(3-(2-chlorobenzamido)-N-methyl-2,3-dihydro-1H-indene-5-carboxamido)-piperidine-1-carboxylate (300 mg, 0.587 mmol, 1 eq) was dissolved in dichloromethane (10 ml). The solution was cooled to 0° C., and trifluoroacetic acid (2 ml) was added dropwise. The reaction mixture was stirred for 1 h at room temperature and then concentrated under reduced pressure. The residue was taken up in dichloromethane (100 ml), washed with saturated sodium hydrogen carbonate solution and saturated sodium chloride solution (in each case 50 ml), dried over sodium sulfate and concentrated under reduced pressure. The desired product was in the form of a brown solid and was used in the next stage without being purified further. Yield: 95% (230 mg, 0.559 mmol)

Provenance & Evidence