Diisopropylethylamine → HCID 178424314, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (S)-1-(3-o-tolyl-3H-imidazo[4,5-b]pyridin-2-yl)ethylamine (330 mg, 1.31 mmol), 6-chloro-9-(tetrahydropyran-2-yl)-9H-purine (430 mg, 1.83 mmol) and DIPEA (0.41 mL, 2.35 mmol) in n-butanol (2 mL) was heated at 90° C. in a sealed vial for 16 h. After cooling to RT, the crude reaction mixture was loaded onto an Isolute® SCX-2 cartridge and washed with MeOH followed by 2M NH3/MeOH. The product containing fractions were combined and concentrated in vacuo. The resulting residue was purified by column chromatography (Si—PCC, gradient 0-10% 2M NH3/MeOH in DCM) to afford 168 as a white solid (155 mg, 32%). LCMS (Method K): RT 2.70 and 2.83 min [M+H]+ 371.1. 1H NMR (DMSO-d6, 400 MHz): δ 12.89 (1H, s), 8.30-7.86 (4H, m), 7.69-7.08 (5H, m), 5.47 (1H, s), 1.96 (3H, s), 1.68 (1.5H, d, J=6.77 Hz), 1.50 (1.5H, d, J=6.84 Hz). Signals split due to presence of rotamers/tautomers.

Provenance & Evidence