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:US09115130B2
公开(公告)日:2015-08-25
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
R1 stands for hydrogen, a halogen, for an optionally protected hydroxyl group or for an optionally protected amino group and
R2 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.
本发明涉及一种新型方法,用于制备式I的2-苯基-[1,2,4]三唑[1,5-a]吡啶衍生物或其盐,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。式I的2-苯基-[1,2,4]三唑[1,5-a]吡啶衍生物,其1,2,4-三唑环核构成了药物化学中大量功能化分子的结构核心。