申请人:Mizuno Masahiro
公开号:US20090326229A1
公开(公告)日:2009-12-31
To provide methods for preparing alpha-carboline derivatives in few steps, as well as conveniently and industrially advantageously. A method for preparation of a compound represented by Formula (II) or a salt thereof, comprising subjecting a compound represented by Formula (I) or a salt thereof to a ring closure reaction in the presence of a palladium catalyst, a ligand, and a base; a method for preparation of a compound represented by Formula (IX) or a salt thereof, comprising subjecting a compound represented by Formula (VII) or a salt thereof to a ring closure reaction in the presence of a palladium catalyst, a ligand, and a base, and subsequently to an aromatization reaction; and methods for preparation of compounds represented by Formulae (XV), (XVII), and (XIX) or a salt thereof, comprising subjecting respective compounds represented by Formulae (II) and (IX) or a salt thereof to a reaction for introducing a leaving group when necessary, and subsequently to a coupling reaction: wherein the symbols respectively represent the same meaning as defined in the present specification.
提供几步制备α-咔啉衍生物的方法,以及方便和具有工业优势的方法。一种制备式(II)化合物或其盐的方法,包括在钯催化剂、配体和碱的存在下,将式(I)化合物或其盐进行环闭合反应;一种制备式(IX)化合物或其盐的方法,包括在钯催化剂、配体和碱的存在下,将式(VII)化合物或其盐进行环闭合反应,然后进行芳构化反应;以及制备式(XV)、(XVII)和(XIX)化合物或其盐的方法,包括在必要时将式(II)和(IX)化合物或其盐分别进行引入离去基团的反应,然后进行偶联反应:其中符号分别表示本说明书中定义的相同含义。