Lithium Hydroxide → HCID 178462367, compound

Participants

Reaction Steps

Trans-(R)-N-(4-((R)-1-aminoethyl)cyclohexyl)-2-hydroxypropanamide (45 mg, 0.21 mmol) was dissolved in THF (6 mL) and DMF (2 mL) and stirred over 4 Å molecular sieves for 10 minutes. 4-(5-(trifluoromethyl)-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-2-(methylsulfonyl)pyrimidine-5-carbonitrile (131.9 mg, 0.2100 mmol) was added. The reaction mixture was stirred under nitrogen at ambient temperature for 18 hours. The molecular sieves was removed by filtration and washed with EtOAc. The filtrate was washed with water, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue dissolved in tetrahydrofuran (6 mL). Lithium hydroxide (840.0 μL of 1 M, 0.8400 mmol) was added and the reaction mixture was stirred at room temperature for 18 hours. The crude mixture was partitioned between ethyl acetate and brine. The organic extracts were dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was purified by reverse phase preparative HPLC [Waters Sunfire C18, 10 μM, 100 Å column, gradient 10%-95% B (solvent A: 0.05% TFA in water; solvent B: CH3CN) over 16 minutes at 25 mL/min]. The fractions were collected, passed through a sodium bicarbonate cartridge and freeze-dried to give the title compound as a white solid (19 mg, 18% yield).

Provenance & Evidence