Ethyl Acetate → 7-Bromo-3-(3-chloro-4-fluorophenyl)thieno[3,2-c]pyridin-4-amine

Participants

Reaction Conditions

Reaction Steps

To the solution of 4-amino-3-(3-chloro-4-fluoro-phenyl)thieno[3,2-c]pyridine (240 mg, 0.86 mmol) in 10 ml of THF cooled at 0° C. was added NBS (153 mg, 0.86 mmol) and the reaction mixture was stirred for 1 hour at 0° C. The resultant mixture was poured into 10% Na2SO3 and ethyl acetate, the organic phase was collected, dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by chromatography on a silica gel column to afford the titled compound (333 mg). 1H NMR (400 MHz, DMSO-d6) ppm 7.97 (s, 1H), 7.73 (dd, J=2.1, 7.2 Hz, 1H), 7.69 (s, 1H), 7.55 (dd, J=8.8 Hz, 1H), 7.48 (ddd, J=2.2, 4.7, 8.4 Hz, 1H), 5.66 (s, 2H). MS: m/z 357, 359, 361 (M+H)+.

Provenance & Evidence