反应详情

The compound 1 (401 mg, 1.20 mmol) was converted to the enol ether with 1-methoxy-1-cycloheptene (1.51 g, 12.0 mmol) in the same manner as the example 7 to give the compound 7 (372 mg, 77%) as oil. Rf 0.75 (Al2O3 60-type E, 2:1 hexane -EtOAc).