Process for preparing optically active 4-mercapto-2-pyrrolidone
derivative and intermediate therefor
    12.
    发明授权
    Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor 失效
    光学活性4-巯基-2-吡咯烷酮衍生物及其中间体的制备方法

    公开(公告)号:US5424446A

    公开(公告)日:1995-06-13

    申请号:US166866

    申请日:1993-12-15

    摘要: A process for preparing an optically active 4-mercapto-2-pyrrolidone derivative of the formula: ##STR1## wherein a group of the formula: --SR.sup.1 is a protected or unprotected mercapto group, and the group of the formula: .dbd.NR.sup.2 is a protected or unprotected imino group, which comprises subjecting racemic 4-amino-3-mercaptobutyric acid or a salt thereof to optical resolution by using 1-(2,3,4-trichlorophenyl)ethanesulfonic acid, followed by subjecting the product to cyclization reaction after protecting the functional groups thereof, if necessary, and further optionally removing the protecting groups therefrom. The present process is industrially advantageous than conventional processes for preparing optically active 4-mercapto-2-pyrrolidone derivatives which are useful as an intermediate for various medicines such as carbapenem antibacterial agents.

    摘要翻译: 制备下式的光学活性4-巯基-2-吡咯烷酮衍生物的方法:其中式-SR的基团是被保护或未被保护的巯基,并且下式的基团= NR2是受保护或未保护的亚氨基,其包括使用1-(2,3,4-三氯苯基)乙磺酸使外消旋4-氨基-3-巯基丁酸或其盐进行光学拆分,然后使产物 保护其官能团后,如果需要,并进一步任选地从其中除去保护基,进行环化反应。 本方法在工业上比用于制备光学活性的4-巯基-2-吡咯烷酮衍生物的方法是有用的,其可用作各种药物例如碳青霉烯类抗菌剂的中间体。