Triacetyl methyldopa was synthesized by the reaction of methyldopa acylated with acetic anhydride in the presence of pyridine which was used as solvent and catalyst for 5 hours at 95 ℃.The ratio of the yield is 85.3％.The crystal structure was determined by X-ray diffraction,the result showed that the molecular formula is C16H18NO7,Mr=337.32,a=0.207 76(4)nm,b=0.875 09(18)nm,c=0.973 57(19)nm,α=90°,β=91.60(3)°,γ=90°,belongs to the monoclinic system and P21/c space group.
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