Potassium Carbonate → Tert-butyl 4-(7-bromothieno[3,2-d]pyrimidin-4-yloxy)piperidine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

To 7-bromo-4-chlorothieno[3,2-d]pyrimidine obtained in Step 1-3) of Preparation Example 1, t-butyl 4-hydroxypiperidine-1-carboxylate, K2CO3 and N,N-dimethylformamide were added, and stirred at 100° C. for 12 hours in a hermetically sealed reactor. The reaction mixture was cooled to room temperature, extracted with ethyl acetate and distilled water, and the organic layer thus obtained was washed with water and a saline solution. Subsequently, the washed organic layer was dried over anhydrous sodium sulfate, and concentrated under reduced pressure to obtain the title compound.

Provenance & Evidence