申请人:Pola Pharma Inc.
公开号:US08030338B2
公开(公告)日:2011-10-04
It is an object to provide a method for producing a 2-nitroimidazole derivative having an acyclic sugar chain in a side chain, which is suitable for production of a derivative having a radioisotope.
A method for producing 1-(1-benzoyloxymethyl-2-hydroxyethyl)oxymethyl-2-nitroimidazole, characterized by reacting glycerin with a benzoylating agent to obtain 1-O-benzoylglycerin, reacting 1-O-benzoylglycerin with dimethoxymethane in the presence of a dehydrating agent to obtain 4-benzoyloxymethyl-1,3-dioxolane, and then reacting this product with 2-nitroimidazole or 2-nitro-1-trialkylsilylimidazole in the presence of a Lewis acid.
本发明的目的是提供一种制备具有侧链中无环糖链的2-硝基咪唑衍生物的方法,该方法适用于制备具有放射性同位素的衍生物。一种制备1-(1-苯甲酰氧甲基-2-羟乙基)氧甲基-2-硝基咪唑的方法,其特征在于将甘油与苯甲酰化剂反应以获得1-O-苯甲酰基甘油,将1-O-苯甲酰基甘油与二甲氧基甲烷在脱水剂的存在下反应以获得4-苯甲酰氧甲基-1,3-二氧兰,然后在路易斯酸的存在下将该产物与2-硝基咪唑或2-硝基-1-三烷基硅基咪唑反应。