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    • 29. 发明公开
    • METHOD FOR PRODUCING OPTICALLY ACTIVE NAPHTHALENE COMPOUND
    • 生产光学活性萘系化合物的方法
    • EP2749558A1
    • 2014-07-02
    • EP12826351.4
    • 2012-08-24
    • Mitsubishi Tanabe Pharma Corporation
    • MATSUYAMA, KojiHATSUDA, MasanoriYOSHINAGA, MasahikoYADA, MitsuhiroTANIMOTO, Koichi
    • C07D401/04A61K31/4709A61P17/00A61P17/02A61P17/04A61P29/00A61P43/00C07B61/00
    • C07D401/04C07B53/00C07C25/06C07C255/03
    • The present invention provides an industrially advantageous method for producing an optically active naphthalene compound useful as a therapeutic agent for dermatitis or the like. Specifically, the present invention provides a method for producing an optically active naphthalene compound [I], which comprises: a step of reacting a compound [a-1] and a compound [b-1] with each other in the presence of a base and a catalyst that is composed of a Pd compound and a tertiary phosphine ligand (step a); a step of asymmetrically hydrogenating a compound [c-1] in the presence of a hydrogen donor and a complex that is prepared from a ruthenium compound and a chiral ligand, or alternatively in the presence of an optically active oxazaborolidine compound (a CBS catalyst) and a boron hydride compound (step b); and a step of treating a compound [d-1] with a reducing agent (step c). (In the above formulae, R a and R b represent the same or different lower alkyl groups; and X 1 represents a halogen atom.)
    • 本发明提供了一种工业上有利的制备可用作皮炎等治疗剂的光学活性萘化合物的方法。 具体而言,本发明提供一种光学活性萘化合物[I]的制造方法,其包括:使化合物[a-1]与化合物[b-1]在碱存在下反应的工序 和由Pd化合物和叔膦配体组成的催化剂(步骤a); 在氢供体和由钌化合物和手性配体制备的络合物存在下,或者在光学活性恶唑硼烷化合物(CBS催化剂)存在下,对化合物[c-1]进行不对称氢化的步骤, 和氢化硼化合物(步骤b); 和用还原剂处理化合物[d-1]的步骤(步骤c)。 (在上式中,Ra和Rb表示相同或不同的低级烷基;并且X1表示卤素原子。)