Potassium Carbonate → Methyl 3-[3'-(3-heptyl-1-methylureido)-2-(4,4,4-trifluorobutoxy)biphenyl-4-yl]propanoate

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In a manner similar to that of Example (25a), by reaction of 500 μL (3.78 mmol, 5.8 eq) of 1-iodo-4,4,4-trifluorobutane and 280 mg (0.65 mmol, 1 eq) of methyl 3-[3′-(3-heptyl-1-methylureido)-2-hydroxybiphenyl-4-yl]propanoate (prepared in Example 15f) in 10 ml of methyl ethyl ketone in the presence of 500 mg (3.61 mmol, 5.5 eq) of potassium carbonate at 80° C. for 12 hours, methyl 3-[3′-(3-heptyl-1-methylureido)-2-(4,4,4-trifluorobutoxy)biphenyl-4-yl]propanoate is obtained in oil form and is used in the following reaction without further purification.

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