反应详情

Using sodium hydride (60% in oil, 620 mg), ethyl 5-bromo-4-methyl-1H-pyrrole-3-carboxylate (3.0 g) and tosyl chloride (2.95 g), a procedure as in Reference Example 41 was performed to give the title compound as pale-yellow crystals (yield 4.27 g, 86%).