申请人:Otsuka Kagaku Kabushiki Kaisha
公开号:US04713452A1
公开(公告)日:1987-12-15
A process for preparing an azetidinone derivative represented by the formula ##STR1## wherein R.sup.1 is hydrogen, halogen or lower alkoxy, R.sup.2 is hydrogen, halogen, lower alkoxy, amino or a group ##STR2## (in which R.sup.5 is substituted or unsubstituted phenyl, substituted or unsubstituted phenylmethyl, substituted or unsubstituted phenoxymethyl, or substituted or unsubstituted benzoyl), or R.sup.1 and R.sup.2, when taken together, are carbonyl, R.sup.3 is substituted or unsubstituted phenyl, and R.sup.4 is hydrogen, optionally substituted hydrocarbon residue or acyl, silyl, sulfonyl or phosphonyl derived from inorganic acid or organic acid, the process comprising reacting a dithioazetidinone derivative represented by the formula ##STR3## wherein R.sup.1, R.sup.2 and R.sup.4 are as defined above and R.sup.9 is substituted or unsubstituted, nitrogen-containing aromatic heterocyclic residue with a compound represented by the formula R.sup.3 SO.sub.2 CN (VII) wherein R.sup.3 is defined above.
一种制备式为##STR1##的氮杂环丙酮衍生物的方法,其中R.sup.1为氢、卤素或低级烷氧基,R.sup.2为氢、卤素、低级烷氧基、氨基或者##STR2##(其中R.sup.5为取代或未取代苯基、取代或未取代苯甲基、取代或未取代苯氧甲基或者取代或未取代苯甲酰基),或者当R.sup.1和R.sup.2结合在一起时为羰基,R.sup.3为取代或未取代苯基,R.sup.4为氢、可选取代的碳氢残基或者来自无机酸或有机酸的酰基、硅基、磺酰基或者磷酸酯基,该方法包括将式为##STR3##的二硫杂环丙酮衍生物与式为R.sup.3 SO.sub.2 CN (VII)的化合物(其中R.sup.3如上所定义)反应。