反应详情

600 mg (2.3 mmol) of 3-(5-ethoxycarbonyl-2-furyl)indazole together with 265 mg (2.4 mmol) of potassium tert-butoxide were initially charged in 10 ml of DMF, 430 mg (2.6 mmol) of 2-chloro-5-(chloromethyl)thiophene in 1 ml of DMF were added dropwise and the mixture was stirred at RT for 2 h. Customary work-up gave 350 mg (41%) of the title compound. m.p.: 124-126° C.