申请人:Suntory Limited
公开号:US05808055A1
公开(公告)日:1998-09-15
A process for producing a 4-substituted azetidinone derivative represented by the following general formula \x9bIII!: ##STR1## (wherein OR is a protected hydroxy group, Y is an alkyl group, an alkoxy group, a silyloxy group, a carbamoyloxy group, an amino group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group, and n is an integer of 0 or 1, provided that n does not represent 0 when Y is an alkoxy group, silyloxy group, carbamoyloxy group or amino group), characterized in that a 2-azetidinone derivative represented by the following general formula \x9bI!: ##STR2## (wherein OR is as defined above, and X is an alkyl group or a substituted or unsubstituted aromatic group) is reacted with thiocarboxylic acid represented by the following general formula \x9bII!: HSCO--(CH.sub.2).sub.n --Y \x9bII! (wherein Y and n are respectively as defined above) in an organic solvent in the presence of copper compounds.
一种生产4-取代氮杂环戊酮衍生物的方法,该衍生物由以下通式\x9bIII!表示:##STR1##(其中OR是受保护的羟基,Y是烷基,烷氧基,硅烷氧基,氨甲酰氧基,氨基,取代或未取代芳香基或取代或未取代杂环基,n是0或1的整数,但当Y是烷氧基,硅烷氧基,氨甲酰氧基或氨基时,n不能表示为0),其特征在于在有机溶剂中,在铜化合物的存在下,将以下通式\x9bI!表示的2-氮杂环戊酮衍生物与以下通式\x9bII!表示的硫代羧酸反应:HSCO--(CH.sub.2).sub.n --Y(其中Y和n分别如上定义),从而得到目标化合物。