Trifluoroacetic acid → Thiophene-2-carboxylic acid (3-aza-bicyclo[3.1.0]hex-6-ylmethyl)-(3-fluoro-4-morpholin-4-yl-phenyl)-amide trifluoroacetic acid salt

Participants

Reaction Steps

To a stirring solution of 6-{[(3-Fluoro-4-morpholin-4-yl-phenyl)-(thiophene-2-carbonyl)-amino]methyl}-3-aza-bicyclo[3.1.0]hexane-3-carboxylic acid tert-butyl ester prepared above (640 mg, 1.28 mmol) in 6 mL of CH2Cl2 at room temperature was added 6 mL of TFA. The reaction stirred at room temperature for 1 hour. The mixture was concentrated under reduced pressure, taken up in toluene and concentrated again to yield 854 mg of the desired product. 400 MHz 1H NMR (CDCl3) δ 9.06 (brs, 1H), 8.62 (brs, 1H), 7.33-7.35 (m, 1H), 7.21-7.25 (m, 1H), 6.94-7.11 (m, 2H), 6.88-6.92 (m, 1H), 6.81-6.84 (m, 1H), 3.89-3.91 (m, 4H), 3.72 (d, J=7.05 Hz, 2H), 3.39-3.46 (m, 4H), 3.16-3.18 (m, 4H), 1.77 (brs, 2H), 1.35-1.37 (m, 1H); MS (M+1) 402.1

Provenance & Evidence