Cesium carbonate → 6-(4-chlorophenyl)-3-{3-methoxy-4-[(1-methyl-3-piperidinyl)methoxy]phenyl}thieno[3,2-d]pyrimidin-4(3H)-one

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Reaction Steps

A solution containing 6-(4-chlorophenyl)-3-(4-hydroxy-3-methoxyphenyl)thieno[3,2-d]pyrimidin-4(3H)-one (77 mg, 0.20 mmol, the preparation of which may be found in Example K1) and 3-(chloromethyl)-1-methylpiperidine (74 mg) was mixed with Cs2CO3 (261 mg, 0.80 mmol) and the resultant mixture was heated at 85° C. for 3 hours. The mixture was then cooled to room temperature, diluted with dichlormethane, washed with a saturated solution of NaHCO3 and brine, dried (MgSO4), and concentrated under reduced pressure. The resultant residue was purified by column chromatography to provide the title compound.

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