Diisopropylethylamine → 3-{[5-(azetidin-1-ylcarbonyl)pyrazin-2-yl]oxy}-5-{[2-fluoro-1-(fluoromethyl)ethyl]oxy}-N-(1-methyl-1H-pyrazol-3-yl)benzamide

Participants

Reaction Steps

DIPEA (0.45 mL, 2.58 mmol) was added to a mixture of 5-[(3-{[2-fluoro-1-(fluoromethyl)ethyl]oxy}-5-{[(1-methyl-1H-pyrazol-3-yl)amino]carbonyl}phenyl)oxy]pyrazine-2-carboxylic acid (0.28 g, 0.65 mmol), azetidine hydrochloride (121 mg, 1.29 mmol) and HATU (516 mg, 1.36 mmol) in DMF (5 mL) and stirred at RT for 72 hours. Ethyl acetate (40 mL) was added and the organics washed with water (2×30 mL), brine (30 mL), dried (MgSO4), filtered and reduced in vacuo to give a yellow oil which was chromatographed on silica, eluting with 0-100% ethyl acetate in isohexane, to give the desired compound (109 mg). 1H NMR δ (CDCl3): 2.32 (quin, 2H), 3.70 (s, 3H), 4.19 (t, 2H), 4.54-4.72 (m, 7H), 6.73 (s, 1H), 6.93 (t, 1H), 7.22 (d, 1H), 7.25 (s, 1H), 7.34 (s, 1H), 8.28 (d, 1H), 8.78 (d, 1H), 8.80 (s, 1H); m/z 473 (M+H)+

Provenance & Evidence