Sodium Methoxide → [2-(2,6-Dichloro-benzyl)-5-methoxy-thiazolo[5,4-d]pyrimidin-7-yl]-(4-trifluoromethyl-phenyl)-amine

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To solution of NaOMe (15 mg, 0.3 mmol) and MeOH (1.5 mL) was added [2-(2,6-dichloro-benzyl)-5-methanesulfonyl-thiazolo[5,4-d]pyrimidin-7-yl]-(4-trifluoromethyl-phenyl)-amine (25 mg, 0.05 mmol) and the resulting mixture was heated to 60° C. After 4 h, the resulting solution was acidified with 1 drop of acetic acid and purified directly by reverse phase HPLC to afford a colorless solid (10.3 mg, 45%). MS (ESI): mass calcd. for C20H13Cl2F3N4OS, 484.0; m/z found, 485.0 [M+H]+. 1H NMR (CDCl3): 8.01 (s, 1H), 7.95 (d, J=8.5 Hz, 2H), 7.65 (d, J=8.6 Hz, 2H), 7.43 (d, J=8.1 Hz, 2H), 7.30-7.25 (m, 1H), 4.74 (s, 2H), 4.05 (s, 3H).

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