Potassium Carbonate → HCID 84708577, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of [5-(2,2,2-trifluoro-acetyl)-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridin-2-yl]-carbamic acid tert-butyl ester (3.50 g, 9.86 mmol) in MeOH (75 mL) is added a solution of potassium carbonate (13.8 g; 98.6 mmol) in water (125 mL) and the reaction stirred at about 25° C. for 24 hours. The suspension is concentrated and the residue suspended in EtOAc (300 mL). This is washed with sat. NH4Cl (300 mL) then brine (100 mL). Solid product forms in the EtOAc layer. This is filtered off as crop 1. The aqueous layer is extracted with more EtOAc (3×300 mL) and the combined extracts washed with brine and dried (Na2SO4). Concentrate to a white solid and combine with the above precipitate. Triturate this in EtOAc (50 mL) and filter to give the title compound (N).

Provenance & Evidence