反应详情

A procedure similar to that described in Example 12 was repeated, except that 0.24 g of 5-{4-(3-methylimidazo[5,4-d]pyrimidin-2-ylmethoxy)benzyl}-3-triphenylmethylthiazolidine-2,4-dione (prepared as described in Preparation 51) and 8 ml of a 3:1 by volume mixture of acetic acid and water were used, to give the title compound as a crude product. This crude product was purified by column chromatography through silica gel, using a gradient elution method, with mixtures of ethyl acetate and ethanol in ratios ranging from 1:0 to 10:1 by volume as the eluent, to give 30 mg of the title compound, melting at 244-246° C.