Diisopropylethylamine → 1-(5-tert-Butyl-2-p-tolyl-2H-pyrazol-3-yl)-3-{(1S,4R)-4-[3-(2-pyrrolidin-1-yl-ethyl)-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy]-1,2,3,4-tetrahydro-naphthalen-1-yl}-urea

Participants

Reaction Conditions

Reaction Steps

Intermediate 1c (270 mg, 0.74 mmol) was dissolved in 1,4-dioxane (6 mL) and (5-tert-butyl-2-p-tolyl-2H-pyrazol-3-yl)-carbamic acid 2,2,2-trichloro-ethyl ester (Synthetic Communications, 2009, 39, 3999-4009, which is incorporated herein by reference in its entirety; 329 mg, 0.81 mmol) and DIPEA (257 μL, 1.48 mmol) were added. The reaction was heated to 60° C. for 18 h. After cooling, the mixture was partitioned between EtOAc (50 mL) and water (50 mL), and then extracted into EtOAc (3×). The combined organic extracts were washed with brine, dried (MgSO4) and evaporated in vacuo. The residue was purified by FCC, using 0-10% [2M NH3 in MeOH] in DCM, then further purified by HPLC (C18 X-select column, 10-98% MeCN in H2O, 0.1% formic acid) to give the title compound (78.0 mg, 0.12 mmol, 17%). LCMS (Method 5): Rt 3.67 mins, m/z 633 [MH+]. 1H NMR (400 MHz, d4-MeOD): 1.30 (9H, s), 1.90-2.06 (6H, m), 2.07-2.18 (1H, m), 2.22-2.30 (1H, m), 2.39 (3H, s), 3.08-3.16 (4H, m), 3.42-3.50 (4H, m), 4.87-4.92 (1H, dd, J 9.0, 5.6), 5.43-5.47 (1H, t, J 4.2), 6.33 (1H, s), 7.20-7.36 (10H, m), 7.62-7.66 (1H, d, J 9.7), 8.07-8.09 (1H, d, J 1.6), 8.45 (0.6H, s).

Provenance & Evidence