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

Participants

Reaction Conditions

Reaction Steps

A mixture of Intermediate 26a (100 mg, 0.279 mmol), Intermediate 26d (108 mg, 0.254 mmol), and DIPEA (73 μL, 0.419 mmol) in dioxane (2.5 mL) was stirred at 60° C. for 42 h and then left standing at RT for 72 h. The volatiles were concentrated in vacuo and the resultant residue was purified by FCC, using 0-10% MeOH in DCM followed by MDAP (Method 7) to afford the title compound (23 mg, 14%) as a white solid. LCMS (Method 5): Rt 4.19 min, m/z 634 [MH+]. 1H NMR (400 MHz, DMSO): 1.21 (9H, s), 1.79-2.16 (4H, m), 3.62-3.70 (2H, m), 3.94 (2H, t, J=6.0 Hz), 4.78-4.88 (1H, m), 4.99 (1H, br s), 5.55 (1H, t, J=4.2 Hz), 6.05 (1H, s), 7.07 (1H, d, J=8.6 Hz), 7.23-7.30 (1H, m), 7.31-7.38 (4H, m), 7.70-7.74 (1H, m), 7.74-7.80 (2H, m), 7.91 (1H, d, J=9.9 Hz), 7.98 (1H, d, J=2.1 Hz), 8.19 (1H, s).

Provenance & Evidence