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    • 9. 发明授权
    • Preparation of eslicarbazepine and related compounds by asymmetric hydrogenation
    • 通过不对称氢化制备eslicarbazepine和相关化合物
    • US08367821B2
    • 2013-02-05
    • US12294855
    • 2007-04-11
    • Bing YuWenge LiDavid Alexander Learmonth
    • Bing YuWenge LiDavid Alexander Learmonth
    • C07D223/22
    • C07D223/22
    • A process for preparing a compound of the formula IA or IB: wherein R is alkyl, aminoalkyl, halogenalkyl, aralkyl, cycloalkyl, cycloalkylalkyl, alkoxy, phenyl or substituted phenyl or pyridyl group; the term alkyl means carbon chain, straight or branched, containing from 1 to 18 carbon atoms; the term halogen represents fluorine, chlorine, bromine or iodine; the term cycloalkyl represents a saturated alicyclic group with 3 to 6 carbon atoms; the term aryl represents unsubstituted phenyl group or phenyl substituted by alkoxy, halogen or nitro group, the process comprising asymmetric hydrogenation of a compound of the formula II: wherein R has the same meanings as above, using a chiral catalyst and a source of hydrogen.
    • 制备式IA或IB化合物的方法:其中R是烷基,氨基烷基,卤代烷基,芳烷基,环烷基,环烷基烷基,烷氧基,苯基或取代的苯基或吡啶基; 术语烷基是指含有1至18个碳原子的直链或支链的碳链; 术语卤素表示氟,氯,溴或碘; 术语环烷基表示具有3至6个碳原子的饱和脂环基; 术语芳基表示未取代的苯基或被烷氧基,卤素或硝基取代的苯基,该方法包括使用手性催化剂和氢源的式II化合物的不对称氢化:其中R具有与上述相同的含义。