Diisopropylethylamine → HCID 53382477, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (S)-1-[1-(3,5-difluorophenyl)-6-fluoro-1H-benzoimidazol-2-yl]ethylamine (245 mg, 0.84 mmol), 4-amino-6-chloropyrimidine-5-carbonitrile (137 mg, 0.88 mmol) and DIPEA (0.44 mL, 2.5 mmol) in IPA (1.7 mL) was heated in a sealed tube for 16 h at 90° C. After cooling to RT, the volatiles were removed under reduced pressure and the resulting residue loaded onto an Isolute® SCX-2 cartridge. The cartridge was washed with MeOH, followed by 2M NH3/MeOH. The basic fractions were combined, concentrated in vacuo and the resulting residue purified by column chromatography (Si—PPC, gradient 25-75% EtOAc/cyclohexane) to give colourless oil. The residue was taken up in EtOAc and the product triturated with cyclohexane. The solid was filtered to afford 349 as a white solid (134 mg, 39%). LCMS (Method K): RT 4.10 min [M+H]+ 410. 1H NMR (DMSO-d6, 400 MHz): δ 7.87 (1H, s), 7.76-7.7 (2H, m), 7.36-7.31 (3H, m), 7.18 (2H, bs), 7.13 (1H, ddd, J=10.0, 8.5, 2.5 Hz), 7.05 (1H, dd, J=9.0, 2.5 Hz), 5.64 (1H, dq, J=7.0, 7.0 Hz), 1.56 (3H, d, J=7.0 Hz)

Provenance & Evidence