HCID 71143893, compound → HCID 71143988, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of tert-butyl 6-((3R,4R)-3-(tert-butoxycarbonylamino)tetrahydro-2H-pyran-4-ylamino)-4-chloro-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate (200 mg, 0.399 mmol), 1,3-dimethyl-5-(tributylstannyl)-1H-thieno[2,3-c]pyrazole (352 mg, 0.798 mmol) and tetrakis(triphenylphosphine)palladium(0) (231 mg, 0.200 mmol) in toluene (3 mL) was heated to 120° C. in a Biotage Initiator microwave for 30 minutes. The mixture was concentrated to give the intermediate, tert-butyl 6-(((3R,4R)-3-((tert-butoxycarbonyl)amino)tetrahydro-2H-pyran-4-yl)amino)-4-(1,3-dimethyl-1H-thieno[2,3-c]pyrazol-5-yl)-7-fluoro-3-oxo-1H-pyrrolo[3,4-c]pyridine-2(3H)-carboxylate, which was subsequently dissolved in DCM (5 mL) and TFA (5 mL). The resulting solution was stirred at room temperature for 20 minutes, concentrated, and purified by preparatory HPLC, eluting with a gradient of 10-30% ACN (0.035% TFA) and water (0.05% TFA). The collected fractions were combined and dried to give a TFA salt of the title compound as a white solid (85 mg, 51%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.79-1.81 (m, 1H), 2.13-2.14 (m, 1H), 2.53 (s, 3H), 3.61-3.63 (m, 1H), 3.85-3.87 (m, 2H), 3.87 (s, 3H), 4.01-4.07 (m, 2H), 4.33-4.35 (m, 1H), 4.44 (d, J=7.80 Hz, 2H), 7.33-47.34 (m, 1H), 8.01-8.02 (m, 2H), 8.53 (s, 1H), 9.16 (s, 1H). ESI-MS m/z [M+H]+ calc'd for C19H21FN6O2S, 417. found, 417.

Provenance & Evidence