Process for preparing thiazolino azetidinone and 2-exo-methylenepenam
derivative
    5.
    发明授权
    Process for preparing thiazolino azetidinone and 2-exo-methylenepenam derivative 失效
    制备噻唑基氮杂环丁酮和2-外 - 亚甲基台am am嗪衍生物的方法

    公开(公告)号:US5288860A

    公开(公告)日:1994-02-22

    申请号:US3024

    申请日:1993-01-11

    摘要: The present invention provides a thiazolinoazetidinone derivative represented by the formula ##STR1## wherein R.sup.1 is phenyl having or not having substituent(s), methyl having or not having substituent(s) or ##STR2## group, R.sup.3 being phenyl having or not having substituent(s), and R.sup.2 is a hydrogen atom or carboxylic acid protective group, and a process for preparing the same.The present invention further provides a process for preparing a 2-exo-methylenepenam derivative characterized by hydrolyzing the thiazoline ring of a thiazolinoazetidinone derivative of the above formula (1) to effect recyclization and obtain a 2-exo-methylenepenam derivative represented by the formula ##STR3## wherein R.sup.1 and R.sup.2 are as defined above.

    摘要翻译: 本发明提供由式(1)表示的噻唑并氮杂环丁酮衍生物,其中R 1是具有或不具有取代基的苯基,具有或不具有取代基的甲基或基团,R3是具有或不具有取代基的苯基, 不具有取代基,R2为氢原子或羧酸保护基,及其制备方法。 本发明进一步提供了制备2-异亚甲基台内叶酸衍生物的方法,其特征在于水解上述式(1)的噻唑并氮杂环丁酮衍生物的噻唑啉环以进行再循环,得到式(1)所示的2-外 - 亚甲基山梨醇衍生物, 图像(3)其中R1和R2如上所定义。

    Process for preparing cephem compounds
    6.
    发明授权
    Process for preparing cephem compounds 失效
    头孢烯化合物的制备方法

    公开(公告)号:US5656754A

    公开(公告)日:1997-08-12

    申请号:US211119

    申请日:1994-03-22

    摘要: The present invention provides a process for preparing a cephem compound represented by the general formula (3) characterized in that an allenyl-.beta.-lactam compound represented by the general formula (1) is reacted with an organotin compound represented by the general formula (2) in the presence of a monovalent copper salt ##STR1## wherein R.sup.1 is a hydrogen atom, halogen atom, amino or protected amino, R.sup.2 is a hydrogen atom, halogen atom, lower alkoxyl, lower acyl, lower alkyl, lower alkyl having hydroxyl or protected hydroxyl as a substituent, hydroxyl or protected hydroxyl, or R.sup.1 and R.sup.2 form=0 when taken together, R.sup.3 is a hydrogen atom or carboxylic acid protecting group, R.sup.4 is aryl, aryl having a substituent, nitrogen-containing aromatic heterocyclic group or nitrogen-containing aromatic heterocyclic group having a substituent, and m is 0 or 2,(R.sup.5).sub.n --Sn(R.sup.6).sub.4--n (2)wherein R.sup.5 is alkenyl, alkenyl having a substituent, aryl, aryl having a substituent, nitrogen-containing aromatic heterocyclic group or nitrogen-containing aromatic heterocyclic group having a substituent, R.sup.6 is lower alkyl, and n is 1 or 2, ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.5 are the same as defined above.

    摘要翻译: PCT No.PCT / JP93 / 01041 Sec。 371日期:1994年3月22日 102(e)1994年3月22日PCT 1993年7月26日PCT公布。 出版物WO94 / 02490 日期:1994年2月3日本发明提供一种制备由通式(3)表示的头孢烯化合物的方法,其特征在于,将由通式(1)表示的丙烯酰基-β-内酰胺化合物与由 在一价铜盐(1)的存在下通式(2)其中R1是氢原子,卤素原子,氨基或被保护的氨基,R2是氢原子,卤素原子,低级烷氧基,低级酰基, 低级烷基,具有羟基或被保护的羟基作为取代基的低级烷基,羟基或保护的羟基,或者R 1和R 2形成= 0,当R 3是氢原子或羧酸保护基时,R 4是芳基,具有取代基的芳基, 具有取代基的含氮芳香族杂环基或含氮芳香族杂环基,m为0或2,(R5)n-Sn(R6)4-n(2)其中R5为烯基,具有取代基的烯基, ,具有取代基的芳基,氮 - 具有取代基的芳族杂环基或含氮芳族杂环基,R6是低级烷基,n是1或2,其中R1,R2,R3和R5与上述定义相同。