[EN] COMPOSITIONS AND METHODS FOR MODULATING LPA RECEPTORS<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR LA MODULATION DE RÉCEPTEURS AU LPA
申请人:IRM LLC
公开号:WO2012138648A1
公开(公告)日:2012-10-11
The present invention relates to compounds of Formula (1), or pharmaceutically acceptable salts thereof and their pharmaceutical compositions, wherein variables are as defined herein, which are useful as modulators of the activity of lysophosphatidic acid (LPA).
A one‐pot continuous‐flow method for hydrogen (deuterium) generation and subsequent hydrogenation (deuterogenation) was developed using a stainless‐steel (SUS304)‐mediated ball‐milling approach. SUS304, especially zero‐valent Cr and Ni as constituents of the SUS304, and mechanochemical processing played crucial roles in the development of the reactions.
Racemization of Secondary Alcohols Catalyzed by Cyclopentadienylruthenium Complexes: Evidence for an Alkoxide Pathway by Fast β-Hydride Elimination–Readdition
作者:Belén Martín-Matute、Jenny B. Åberg、Michaela Edin、Jan-E. Bäckvall
DOI:10.1002/chem.200700373
日期:2007.7.16
IR spectroscopy is consistent with a mechanism in which the alkoxide substitution step and the beta-hydride elimination step occur without CO dissociation. The alkoxide substitution reaction is proposed to begin with hydrogenbonding of the incoming alcohol to the active ruthenium-alkoxide intermediate. Subsequent alkoxide exchange can occur via two pathways: i) an associative pathway involving a eta3-CpRu
Nickel-Catalyzed Alkylation of Oxindoles with Secondary Alcohols
作者:Atanu Bera、Adrija Ghosh、Debasis Banerjee
DOI:10.1021/acs.joc.3c00402
日期:2023.6.2
we have demonstrated a simple nickel-catalyzed C-3-selective alkylation of 2-oxindoles using a wide variety of secondary alkyl alcohols. As a special highlight, functionalization of the cholesterol derivative was reported. Control experiments, initial mechanistic studies, and deuterium-labeling experiments were performed for the alkylation process.
Hydrogen-transfer reduction of carbonyl compounds promoted by nickel nanoparticles
作者:Francisco Alonso、Paola Riente、Miguel Yus
DOI:10.1016/j.tet.2007.11.093
日期:2008.2
Nickel(0) nanoparticles, generated from nickel(II) chloride, lithium powder and a catalytic amount of 4,4-di-tert-butylbiphenyl (DTBB) in THF at room temperature, have been found to promote the reduction of a variety of ketones and aldehydes by transfer hydrogenation using isopropanol as the hydrogen donor. The nickel nanoparticles were characterised and could be re-utilised with a good performance in the absence of a base. A mechanistic study demonstrates that the reaction proceeds through a dihydride-type mechanism. (C) 2007 Elsevier Ltd. All rights reserved.