Hydrochloric Acid → N-cyclohexanoyl-(L)-citrulline

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반응 단계

L-Citrulline (35.2 g., 0.2 mole) was dissolved in 200 mL of 2 N sodium hydroxide. Cyclohexanoyl chloride (29 mL, 0.2 mole) was added dropwise to the mixture. The reaction mixture was maintained at about 25° C. for 1 hour. The mixture was then acidified to pH 2.6 with aqueous (4:1) hydrochloric acid. The precipitate which formed was separated by decantation. The solids were dissolved in 2 N sodium hydroxide to pH 6.5 and dried by lyophilization to furnish 44.2 g of N-cyclohexanoyl-(L)-citrulline. The product was a white solid.

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