【摘要】 目的：为寻找新型低毒有效放射增敏剂，合成了３ 种类型有机锗倍半氧化物。方法：取代桂皮酸或取代苯丙炔酸与三氯锗仿反应，所得加成物经水解即得锗倍半氧化物；三氯锗基丙酰氯与亮氨酸乙酯或苯丙氨酸乙酯反应，所得产物水解即得Ｎ（β倍半氧锗基丙酰） 氨基酸酯。结果：合成的８ 个化合物中，７ 个（２ ～８） 为新化合物，羧基β（ 取代苯基）乙烯基锗倍半氧化物为新类型化合物。结论：离体和整体实验结果表明，化合物４ 有较显著的放射增敏作用，为新型低毒有效放射增敏剂。更多还原

【Abstract】 AIM: To search for more effective and less toxic new type radiosensitizer, three types of organic germanium sesquioxide were synthesized. METHODS: 1. Substituted cinnamic acid or substituted phenyl propynoic acid reacted with trichlorogermane to afford the addition products which were hydrolyzed to the corresponding germanium sesquioxide. 2. β trichlorogermyl propionyl chloride reacted with ethyl ester of leucine or phenyl alanine to give the products which were hydrolyzed to the corresponding germanium sesquioxide. RESULTS: Eight germanium sesquioxides were synthesized and seven of them are new compounds (2～8). The type of carboxy β (substituted phenyl) vinyl germanium is reported for the first time. The structures of the compounds have been elucidated by UV, IR, 1HNMR and elemental analysis. CONCLUSION: The synthetic compounds were tested for radiosensitizing activity, compound 4 exhibited significant radiosensitizing effect both in vitro and in vivo . Compound 4 showed great potential as a new type radiosensitizer with more effective action and lower toxicity.更多还原