本文合成了2,3,4,4’-四羟基脱氧安息香（L1）、乙基{4-[2-羰基-2-(2,3,4-三羟基苯基)乙基]苯氧基}乙酸酯（L2）、{4-[2-羰基-2-(2,3,4-三羟基苯基)乙基]苯氧基}乙酸（L3）、N-(2-{4-[2-羰基-2-(2,3,4-三羟基苯基)乙基]苯氧基}乙基)谷氨酸（L4）、2-[4-(1,3-二羧基-丙基氨基)-丁基氨基]-戊二酸（L5）等物质，并通过熔点、氢核磁共振谱进行了表征。本论文目的在于研究上述化合物的晶体结构和体外抗氧化生物活性。 通过紫外光谱研究了上述化合物对超氧阴离子自由基（O2-•）、羟基自由基（•OH）、DPPH• 自由基的清除作用。证明所合成的化合物对三种自由基均有一定程度的清除作用，其中L4的清除效果最佳。 通过紫外光谱研究了上述化合物抗氧化性红细胞溶血实验，证明所合成化合物对自由基诱导的红细胞溶血有抑制作用，其中L4抑制作用效果最明显，L1其次。

Several chemicals was synthesized in this paper, such as 2,3,4,4’-tetrahydroxy d-eoxy benzoin (L1) 、ethyl{4-[2-oxo-2-(2,3,4-trihydroxyphenylethyl]phenoxy}ac -etate (L2)、{4-[2-oxo-2-(2,3,4-trihydroxyphenyl)ethyl] phenoxy} acetic acid (L3)、N-(2-{4-[2-oxo-2-(2,3,4-trihydroxyphenyl) ethyl] phenoxy} ethyl) glutamine (L4)、2-[4-(1,3-dicarboxypropylamino) butylamino]pentanedioic acid (L5). The structure of them are all characterized by melting point, 1HNMR. The purpose of this paper is to study the crystal structure and antioxidation in vitro of the compounds above. The scavenging effects of compound for superoxide free radicals, hydroxyl radical and DPPH• free radicals were detected by UV and the relation between the structure and the effects was discussed. The antioxidation properties of compounds were researched by red blood cell hemolysis restrain expertise.