反应详情

A procedure similar to that described in Example 2 was repeated, except that 470 mg of 5-{4-[2-(indolin-1-yl)ethoxy]benzyl}-3-triphenylmethylthiazolidine-2,4-dione (prepared as described in Preparation 10) and 3 ml of trifluoroacetic acid were used, to give 170 mg of the title compound, melting at 132.8°-135.6° C.