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 2N 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 2N 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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