[EN] PIPERAZINE DERIVATIVES AS MAGL INHIBITORS<br/>[FR] DÉRIVÉS DE PIPÉRAZINE UTILISÉS EN TANT QU'INHIBITEURS DE MAGL
申请人:HOFFMANN LA ROCHE
公开号:WO2019072785A1
公开(公告)日:2019-04-18
The invention provides new heterocyclic compounds having general Formula (I), or a pharmaceutically acceptable salt thereof, wherein R1, R2, X, Y1 and Y2 are as described herein, compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds.
The invention provides new heterocyclic compounds having the general Formula (I), or a pharmaceutically acceptable salt thereof,
wherein R1, R2, X, Y1 and Y2 are as described herein, compositions including the compounds, processes of manufacturing the compounds and methods of using the compounds.
Lee; Choi; Choe, Journal of labelled compounds and radiopharmaceuticals, 1999, vol. 42, # SUPPL. 1, p. S99-S101
作者:Lee、Choi、Choe、Kim、Chi
DOI:——
日期:——
PIPERAZINE DERIVATIVES AS MAGL INHIBITORS
申请人:F. Hoffmann-La Roche AG
公开号:EP3694840B1
公开(公告)日:2021-08-04
An Efficient Synthesis of (Fluoromethyl)pyridylamines for Labeling with Fluorine-18
作者:Kyo Chul Lee、Dae Yoon Chi
DOI:10.1021/jo990994f
日期:1999.11.1
We have described a two-step method for the preparation of (fluoromethyl)pyridyl-substituted amines. The sequence involves fluoride ion displacement of methanesulfonates (mesylates) of 6-chloro-alpha-hydroxy-2- and -3-picolines, followed by arylation of the amine by chloropicoline. We have called this sequence fluorination-N-arylation. 1-Phenylpiperazine has been used as a model amine. Two key precursors for this sequence are the mesylates of 6-chloro-alpha-hydroxy-2- and -3-picolines. The former was synthesized in four steps from 6-chloro-2-picoline in 78% yield and the latter in three Steps from 6-chloronicotinic acid in 53% yield. This fluorination-N-arylation sequence is sufficiently rapid and efficient for the preparation of a variety of aryl-substituted amine compounds labeled with the short half-life (t(1/2) = 110 min) positron-emitting radionuclide fluorine-18.