Methanol → HCID 86652073, compound

Participants

Reaction Conditions

Reaction Steps

A 10 mL microwave vial was charged with (R)-5-(1-(2,4-difluorobenzyl)-5-ethyl-7-isopropyl-4-oxo-4,5,7,8-tetrahydro-1H-imidazo[2,1-b]purin-2-yl)-2-fluorobenzonitrile (50) (275 mg, 0.558 mmol), MeOH (5 mL), and ammonium sulfide solution in water (20 wt %, 600 μL, 1.67 mmol). The reaction mixture was stirred in a microwave at 85° C. for 15 minutes, cooled to room temperature and concentrated in vacuo. The residue obtained was diluted with EtOAc (200 mL) and brine (250 mL) and the layers separated. The aqueous phase was extracted with EtOAc (200 mL) and the combined organic extracts were dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified using CombiFlash chromatography (silica gel, 96:4, CH2Cl2/MeOH) to provide (R)-5-(1-(2,4-difluorobenzyl)-5-ethyl-7-isopropyl-4-oxo-4,5,7,8-tetrahydro-1H-imidazo[2,1-b]purin-2-yl)-2-fluorobenzothioamide (118 mg, 40%) as a yellow solid.

Provenance & Evidence