Diisopropylethylamine → HCID 178481624, compound

Participants

Reaction Conditions

Reaction Steps

3-(trans-3-aminocyclobutyl)-6-fluoro-1-methyl-1H-imidazo[4,5-b]pyridin-2(3H)-one hydrochloride (0.100 g, 0.367 mmol), 2-chloro-6-fluorobenzothiazole (0.083 g, 0.440 mmol), and N,N-diisopropylethylamine (0.255 mL, 1.467 mmol) were mixed in DMSO (0.5 mL) in a sealed tube. The reaction mixture was stirred at 120° C. for 5 h. The reaction mixture was cooled to room temperature, diluted with water, and extracted with EtOAc. The organic layer was separated, washed with saturated aqueous sodium chloride, dried over magnesium sulfate, filtered, and concentrated. The resulting crude product was purified by silica gel column chromatography eluting with EtOAc in hexanes to yield the title compound (0.062 g, 0.160 mmol, 43.6% yield) as an off-white solid. M+1: 388.1. 1H NMR (400 MHz, DMSO-d6) δ ppm 2.40-2.49 (m, 2 H) 3.25-3.34 (m, 2 H) 3.36 (s, 3 H) 4.50-4.59 (m, 1 H) 5.21 (quin, J=8.36 Hz, 1 H) 7.08 (td, J=9.10, 2.74 Hz, 1 H) 7.41 (dd, J=8.80, 4.89 Hz, 1 H) 7.62-7.71 (m, 2 H) 8.05 (t, J=2.25 Hz, 1 H) 8.57 (d, J=6.26 Hz, 1 H).

Provenance & Evidence