反应详情

Prop-2-yn-1-ol (0.19 g), PdCl2(PPh3)2 (39 mg), CuI (21 mg) and TEA (0.17 g) were added to a chloroform (10 mL) solution of 4-iodo-4′-{[1-methoxy-3-(methylamino)-1,3-dioxopropan-2-yl](methyl)carbamoyl}biphenyl (0.52 g) as obtained in Example 20-(1). The mixture was stirred for 3 hours at room temperature in a nitrogen atmosphere, and then the reaction mixture was concentrated. The resulting residue was purified by OH type silica gel chromatography (gradient elution with hexane/ethyl acetate=50/50→0/100) to obtain 4-(3-hydroxyprop-1-yn-1-yl)-4′-{[1-methoxy-3-(methylamino)-1,3-dioxopropan-2-yl](methyl)carbamoyl}biphenyl (white solid) (0.28 g, 63%).

1. customas obtained in Example 20-(1)
2. concentrationthe reaction mixture was concentrated
3. customThe resulting residue was purified by OH type silica gel chromatography (gradient elution with hexane/ethyl acetate=50/50→0/100)