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Procédé de production d'un composé de naphtalène optiquement actif
专利权人:
Mitsubishi Tanabe Pharma Corporation
发明人:
申请号:
EP14198529.1
公开号:
EP2868659A1
申请日:
2012.08.24
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
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, Ra and Rb represent the same or different lower alkyl groups; and X1 represents a halogen atom.)
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