Hydrochloric Acid → HCID 16224621, compound

Participants

Reaction Conditions

Reaction Steps

1.24 mL (1.24 mmol) of aqueous 1 M sodium hydroxide solution are added to a solution of 0.4 g (0.83 mmol) of methyl (Z)-3-[2-butoxy-3′-(1-methyl-3-pentylureido)biphenyl-4-yl]-2-methoxyacrylate in 10 mL of tetrahydrofuran. The reaction mixture is stirred at 68° C. for 5 hours. After cooling, the reaction is worked up by addition of 3 mL (3 mmol) of aqueous 1 M hydrochloric acid solution and 10 mL of water and extraction with ethyl acetate. The organic phases are combined, washed with saturated sodium chloride solution and then dried over magnesium sulfate. The solvents are evaporated off. The product is recrystallized from a pentane/acetone mixture to give 0.3 g (76%) of (Z)-3-[2-butoxy-3′-(1-methyl-3-pentylureido)biphenyl-4-yl]-2-methoxyacrylic acid in the form of a cream-colored solid with a melting point of 61° C.

Provenance & Evidence