Hydrochloric Acid → 2-(2-ethynyl-1-methyl-4-phenyl-1H-imidazol-5-yl)[1,3]thiazolo[5,4-d]pyrimidin-7-amine

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Reaction Steps

2-{1-Methyl-4-phenyl-2-[(trimethylsilyl)ethynyl]-1H-imidazol-5-yl}[1,3]thiazolo[5,4-d]pyrimidin-7-amine (Intermediate 45) (48 mg) was dissolved/suspended in MeOH (3 mL)/water (1 mL) and potassium carbonate (50 mg) added, then stirred for 90 minutes at ambient temperature. The reaction mixture was neutralised with 2M HCl, concentrated in vacuo, the residue diluted with water (10 mL) and extracted with DCM (3×10 mL). The organic extracts were dried (MgSO4), filtered, concentrated in vacuo then purified by flash chromatography on silica eluting with 4% MeOH/DCM to give the title compound as a yellow solid (10 mg, 25%);

Provenance & Evidence