Triethylamine → HCID 53380753, compound

Participants

Reaction Steps

A mixture of 3-(difluoromethyl)-5-[(dimethylamino)methyl]benzoic acid (14.0 mg, 0.0609 mmol, from Step D), Triethylamine (28.3 μL, 0.203 mmol) and N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (21.2 mg, 0.0558 mmol) in tetrahydrofuran (0.56 mL) was stirred for 15 minutes. {1-piperidin-4-yl-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile (25.0 mg, 0.0507 mmol, prepared as described in Example 1, Step H, except worked up to provide the free base) was added and the reaction was stirred for two hours. The reaction mixture was partitioned between ethyl acetate and water. The organic portion was washed with water, 0.1N NaOH and sat. NaCl, dried over sodium sulfate, filtered and concentrated. The residue was stirred in 1:1 DCM:TFA for 1 hour, solvents were removed in vacuo, and the resulting residue stirred in methanol (1 mL) containing ethylenediamine (0.2 mL) until deprotection was complete. Purification via preparative HPLC-MS (C18 eluting with a gradient of MeCN/H2O containing 0.15% NH4OH) afforded product as a white powder. Yield: 0.012 g (40%); LC-MS: 574.3 (M+H)+. 1H NMR (400 MHz, DMSO-d6): δ 12.09 (br s, 1H), 8.82 (s, 1H), 8.69 (s, 1H), 8.42 (s, 1H), 7.61 (d, 1H), 7.56 (s, 1H), 7.46-7.41 (m, 2H), 7.07 (t, 1H), 7.07 (d, 1H), 4.17-4.03 (m, 1H), 3.75 (d, 2H), 3.62-3.25 (m, 7H), 3.22-3.03 (m, 2H), 2.58-2.51 (m, 1H), 2.15 (s, 6H), 1.85-1.55 (m, 2H), 1.33-1.12 (m, 2H).

Provenance & Evidence