Trifluoroacetic acid → (+/-)-cis-n-(5-(Isoquinolin-6-yl)-1,3,4-thiadiazol-2-yl)-3-phenylpyrrolidine-2-carboxamide

Participants

Reaction Steps

To a stirred mixture of (±)-cis-tert-butyl 2-((5-(isoquinolin-6-yl)-1,3,4-thiadiazol-2-yl)carbamoyl)-3-phenylpyrrolidine-1-carboxylate (54 mg, 0.11 mmol) in DCM (3.0 mL) was added TFA (3.0 mL). The mixture was stirred at room temperature for 1 hour. The reaction mixture was concentrated. The crude residue was purified by flash column chromatography (eluting with a gradient of DCM to DCM containing 5% of 10% MeOH in ammonia) to provide (±)-cis-N-(5-(isoquinolin-6-yl)-1,3,4-thiadiazol-2-yl)-3-phenylpyrrolidine-2-carboxamide as a white solid (3.0 mg, 7%). LCMS (M+H) 402.2 calc. for C22H20N5OS 402.1. 1H NMR (400 MHz, CDCl3): δ ppm 9.23 (s, 1H) 8.55 (d, J=4.89 Hz, 1H) 8.08-8.29 (m, 2H) 7.97 (d, J=7.63 Hz, 1H) 7.65 (d, J=5.48 Hz, 1H) 7.15-7.24 (m, 5H) 4.42-4.87 (m, 1H) 3.89 (d, J=5.48 Hz, 1H) 3.56-3.72 (m, 1H) 3.35-3.51 (m, 1H) 2.18-2.54 (m, 2H). 2H obscured.

Provenance & Evidence