[Cl:1][C:2]1[N:3]=[C:4]([N:15]2[CH2:20][CH2:19][O:18][CH2:17][CH2:16]2)[C:5]2[N:10]=[C:9]([C:11]([OH:14])([CH3:13])[CH3:12])[S:8][C:6]=2[N:7]=1.[H-].[Na+].CI.[C:25](OCC)(=O)C>CN(C=O)C>[Cl:1][C:2]1[N:3]=[C:4]([N:15]2[CH2:16][CH2:17][O:18][CH2:19][CH2:20]2)[C:5]2[N:10]=[C:9]([C:11]([O:14][CH3:25])([CH3:13])[CH3:12])[S:8][C:6]=2[N:7]=12-(5-Chloro-7-morpholinothiazolo[5,4-d]pyrimidin-2-yl)propan-2-ol 68 (175 mg) was cooled in DMF to 0° C. and then NaH was added at once. The reaction was allowed to warm to room temperature and stirred several minutes before addition of methyl iodide. Reaction was stirred several hours and monitored by LC-MS until complete. Ethyl acetate was added and the solution was extracted with saturated bicarbonate solution. Organic was collected and dried, filtered and concentrated to get crude 4-(5-chloro-2-(2-methoxypropan-2-yl)thiazolo[5,4-d]pyrimidin-7-yl)morpholine.
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