反应详情

Starting with a mixture of 6.48 g (21.0 mmol) of 3-(3-ethoxy-3-oxopropyl)-4-methoxy-γ-oxobenzenebutanoic acid and 24.4 g (0.211 mmol) of pyridine hydrochloride, the title compound (2.87 g, 42.4%) was obtained as a light-tan oil, using the procedure of example 140.