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    • 68. 发明申请
    • Process for production of optically active compounds
    • 光学活性化合物的制造方法
    • US20050107433A1
    • 2005-05-19
    • US10506309
    • 2003-03-05
    • Toru YamanoNaohiro Taya
    • Toru YamanoNaohiro Taya
    • C07D233/64C07B53/00C07B61/00C07D213/55C07D233/54C07D43/02A61K31/4025A61K31/454
    • C07D233/64C07D213/55
    • The present invention provides a method for producing an optically active β-hydroxy ester compound represented by the general formula: wherein R1 represents an optionally substituted hydrocarbon group and the like, R2 represents a nitrogen-containing heterocyclic group different from R1, which is represented by the general formula: wherein the ring may be substituted and the like, R3 represents an optionally substituted hydrocarbon group and the like, R4 and R5 represent, the same or different, a hydrogen atom, a halogen atom and the like, the symbol “*” represents an optically active center, which comprises reacting in the presence of a cinchona alkaloid and the like a compound represented by the general formula: wherein R1 and R2 are as defined above with a compound represented by the general formula: wherein R3, R4 and R5 are as defined above, and X is a halogen atom.
    • 本发明提供一种制备由以下通式表示的光学活性β-羟基酯化合物的方法:其中R 1表示任选取代的烃基等,R 2 O >表示不同于R 1的含氮杂环基,其由以下通式表示:其中该环可以被取代等,R 3表示任选地 取代烃基等,R 4和R 5表示相同或不同的氢原子,卤素原子等,符号“*”表示 光学活性中心,其包括在cinchona生物碱等存在下反应,由通式表示的化合物:其中R 1和R 2如上定义 与下列通式表示的化合物:其中R 3,R 4和R 5如上所定义,X是卤代基 n原子。