Methanol → HCID 89924391, compound

Participants

Reaction Steps

Tetrabutylammonium fluoride (56 mg; 0.21 mmol; 2.0 eq.) was added to a solution of 4-(4-{2-[3-(1-Trimethylsilanylmethyl-1H-[1,2,3]triazol-4-yl)-phenyl]-pyrimidin-5-yl}-pyrazol-1-yl)-piperidine-1-carboxylic acid tert-butyl ester (60 mg; 0.11 mmol; 1.0 eq.) in THF (1 mL) and the reaction mixture was stirred at RT for 2 h. It was then diluted with a saturated solution of NaHCO3 and extracted with EtOAc (three times). Combined organic phases were washed with brine, dried over magnesium sulfate, filtered and concentrated. The crude obtained was dissolved in DCM (1 mL) and MeOH (MeOH) and HCl/dioxane (0.4 mL of a 4N solution, 1.6 mmol, 15 eq.) was added. The reaction mixture was stirred at RT for 2 h, concentrated under reduced pressure and purified by autopreparative LC/Ms to give the title compound as a beige solid (15 mg, 33%). 1H NMR (300 MHz, DMSO-d6) δ 9.22 (s, 2H), 9.11 (brs, 1H), 8.94-8.81 (m, 2H), 8.67 (s, 1H), 8.54 (s, 1H), 8.35 (dt, J=7.9 Hz, 1.5 Hz, 1H), 8.22 (s, 1H), 7.96 (dt, J=7.9 Hz, 1.5 Hz, 1H), 7.61 (t, J=7.9 Hz, 1H), 4.61-4.52 (m, 1H), 4.12 (s, 3H), 3.43-3.36 (m, 2H), 3.16-3.06 (m, 2H), 2.28-2.11 (m, 4H). HPLC (Condition A): Rt 2.08 min (purity 98.5%). MS (ESI+): 387.3.

Provenance & Evidence