Acetone → 2-(5-Chloro-7-morpholinothiazolo[4,5-d]pyrimidin-2-yl)propan-2-ol

Participants

Reaction Conditions

Reaction Steps

4-(5-Chlorothiazolo[4,5-d]pyrimidin-7-yl)morpholine 16 was slurried in tetrahydrofuran and cooled to −78° C. under nitrogen. Two equivalents of 2M lithium diisopropylamide in heptane/tetrahydrofuran/ethylbenzene were added slowly and the solution was stirred for 30 minutes. Acetone (6 eq) was added and the solution was stirred at −78° C. for an additional one hour. Ice was added and the solution was warmed to room temperature before extraction with methylene chloride. The organic layer was dried with sodium sulfate and concentrated. The resulting residue was purified on silica gel to give the light yellow solid of 2-(5-chloro-7-morpholinothiazolo[4,5-d]pyrimidin-2-yl)propan-2-ol.

Provenance & Evidence