反应详情

A solution of 300 mg (0.703 mmol, 1 eq) of methyl 3-[3′-(3-heptyl-1-methylureido)-2-hydroxybiphenyl-4-yl]propanoate (prepared in Example 15f), 319 mg (2.11 mmol, 3 eq) of 1-bromo-3-methylbutane and 583 mg (4.22 mmol, 6 eq) of potassium carbonate in the presence of 42 mg (0.281 mmol, 0.4 eq) of sodium iodide in 10 ml of methyl ethyl ketone is refluxed for 21 hours. The insoluble matter is filtered off and the solvent is evaporated off. 400 mg of methyl 3-[3′-(3-heptyl-1-methylureido)-2-(3-methylbutoxy)biphenyl-4-yl]propanoate are obtained in the form of a yellowish oil. Quantitative yield.

1. filtrationThe insoluble matter is filtered off
2. customthe solvent is evaporated off