[EN] PIPERAZINE METABOTROPIC GLUTAMATE RECEPTOR 5 (MGLUR5) NEGATIVE ALLOSTERIC MODULATORS FOR ANXIETY/DEPRESSION<br/>[FR] PIPÉRAZINE UTILISÉE EN TANT QUE MODULATEURS ALLOSTÉRIQUES NÉGATIFS AGISSANT SUR LE RÉCEPTEUR MÉTABOTROPIQUE DU GLUTAMATE DE TYPE 5 (MGLUR5)
申请人:WYETH CORP
公开号:WO2009143404A1
公开(公告)日:2009-11-26
The present teachings relate to piperazine metabotropic glutamate receptor 5 (mGluR5) negative allosteric modulators having Formula (I); wherein the constituent variables are as defined herein. The present teachings further relate to methods for the preparation of the compounds, and to methods for using the compounds for treatment of diseases and disorders including schizophrenia, paranoia, depression, manic-depressive illness and anxiety.
Radical <i>trans</i>
-Hydroboration of Alkynes with N-Heterocyclic Carbene Boranes
作者:Masaki Shimoi、Takashi Watanabe、Katsuhiro Maeda、Dennis P. Curran、Tsuyoshi Taniguchi
DOI:10.1002/anie.201804515
日期:2018.7.20
Hydroboration of internal alkynes with N‐heterocyclic carbeneboranes (NHC‐boranes) occurs to provide stable NHC (E)‐alkenylboranes upon thermolysis in the presence of di‐tert‐butyl peroxide. The E isomer results from an unusual trans‐hydroboration, and the E/Z selectivity is typically high (90:10 or greater). Evidence suggests that this hydroboration occurs by a radical‐chain reaction involving addition
The present teachings relate to piperazine metabotropic glutamate receptor 5 (mGluR5) negative allosteric modulators having Formula I:
wherein the constituent variables are as defined herein. The present teachings further relate to methods for the preparation of the compounds, and to methods for using the compounds for treatment of diseases and disorders including schizophrenia, paranoia, depression, manic-depressive illness and anxiety.
Copper(I)-Catalyzed Formal Carboboration of Alkynes: Synthesis of Tri- and Tetrasubstituted Vinylboronates
作者:Ricardo Alfaro、Alejandro Parra、José Alemán、José Luis García Ruano、Mariola Tortosa
DOI:10.1021/ja307670k
日期:2012.9.19
The first copper-catalyzed formal carboboration of alkynes, in which a C-B bond and a C-C bond are created in a single catalytic cycle, is presented. The reaction proceeds with high regioselectivity and syn-stereoselectivity to form tri- and tetrasubstituted vinylboronic esters from commercially available bis-(pinacolato)diboron. A subsequent cross-coupling reaction gives access to highly substituted alkenes.
Organomagnesium-Catalyzed Isomerization of Terminal Alkynes to Allenes and Internal Alkynes
作者:Raphaël Rochat、Koji Yamamoto、Michael J. Lopez、Haruki Nagae、Hayato Tsurugi、Kazushi Mashima
DOI:10.1002/chem.201500179
日期:2015.5.26
the transformation of these terminalalkynes into allenes and further to internalalkynes under mild conditions. To the best of our knowledge, this example is the first of an organomagnesium‐catalyzed isomerization of alkynes. Notably, the reactions proceeded through temporally separated autotandem catalysis, thus allowing the isolation of the allene or internalalkyne species in good yields. Mechanistic