Hydrochloric Acid → (E)-3-(3-Amino-4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-prop-2-enenitrile L-prolineamide Hydrochloride

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Reaction Steps

(E)-3-(3-Amino-4-methoxyphenyl)-2-(3,4,5-trimethoxyphenyl)-prop-2-enenitrile-Boc-L-prolineamide (1,250 mg, 2.33 mmols) was dissolved in 10 ml of dichloromethane, and 5 ml of a solution of 4-M hydrochloric acid and dioxane were added thereto. The mixture was reacted at room temperature for 1 hour. One-hundred milliliters of diethyl ether were added thereto, and the mixture was filtered. The resulting powder was purified through medium-pressure liquid chromatography (ODS, mixture of water and acetonitrile at a ratio of 70:30). The product was recrystallized three times with a mixture of chloroform and ethyl acetate at a ratio by volume of 1:10 to produce 465 mg (0.980 mmols) of the final product in a yield of 42%.

Provenance & Evidence