申请人:Niijima Jun
公开号:US08410277B2
公开(公告)日:2013-04-02
It is an object of the present invention to provide an efficient method for manufacturing heterocycle-substituted pyridine derivatives. The present invention provides a method for manufacturing a compound represented by the following formula (I):
the method including reacting a compound represented by the following formula (III):
and a compound represented by the following formula (II):
in a solvent and in the presence of a palladium catalyst and a base, wherein R1 represents a hydrogen atom, etc.; R2 represents a hydrogen atom, a C1-6 alkyl group, an amino group that may be protected with a protective group, etc.; one of X and Y represents a nitrogen atom and the other represents a nitrogen atom or an oxygen atom; Q represents a leaving group; the ring A represents a 5- or 6-member heteroaryl ring or a benzene ring, which may have one or two halogen atoms or C1-6 alkyl groups; Z represents a single bond, a methylene group, an ethylene group, an oxygen atom, etc.; R represents a hydrogen atom or a C1-6 alkyl group, etc.; R3 represents a hydrogen atom or a halogen atom, etc.; and R4 represents a hydrogen atom or a halogen atom;
provided that when Z represents a single bond, or when R3 represents a hydrogen atom, then R1, R2, and R4 cannot all be a hydrogen atom at the same time.
本发明的目的是提供一种有效的制造杂环取代吡啶衍生物的方法。本发明提供了一种制造以下式(I)化合物的方法:在溶剂和钯催化剂和碱存在下,使以下式(III)化合物和以下式(II)化合物反应,其中R1代表氢原子等; R2代表氢原子、C1-6烷基、可能被保护基保护的氨基等; X和Y中的一个代表氮原子,另一个代表氮原子或氧原子; Q代表离去基团; 环A代表5-或6-成员杂环芳基环或苯环,可以有一或两个卤素原子或C1-6烷基; Z代表单键、亚甲基、乙烯基、氧原子等; R代表氢原子或C1-6烷基等; R3代表氢原子或卤素原子等; R4代表氢原子或卤素原子; 前提是当Z代表单键或当R3代表氢原子时,R1、R2和R4不能同时都是氢原子。