PROCESS FOR THE PREPARATION OF 2-PHENYL-[1,2,4]TRIAZOLO[1,5-A]PYRIDINE DERIVATIVES
申请人:HOFFMANN-LA ROCHE INC.
公开号:US20140350259A1
公开(公告)日:2014-11-27
The invention relates to a novel process for the preparation of 2-phenyl-[1,2,4]triazolo[1,5-a]pyridine derivatives of formula I or of a salt thereof
wherein
R
1
stands for hydrogen, a halogen, for an optionally protected hydroxyl group or for an optionally protected amino group and
R
2
is hydrogen or a halogen.
2-Phenyl-[1,2,4]triazolo[1,5-a]pyridine derivatives of formula I with their 1,2,4-triazole nucleus build the structural core of a great number of functionalized molecules in medicinal chemistry.
该发明涉及一种新型制备2-苯基-[1,2,4]三唑并[1,5-a]吡啶衍生物的方法,其化学式为I或其盐,其中R1代表氢、卤素、可选择保护的羟基或可选择保护的氨基,R2为氢或卤素。化学式I的2-苯基-[1,2,4]三唑并[1,5-a]吡啶衍生物具有1,2,4-三唑核心,构成了药物化学中大量功能化分子的结构核心。