Cu(OAc)<sub>2</sub>-catalyzed remote benzylic C(sp<sup>3</sup>)–H oxyfunctionalization for CO formation directed by the hindered para-hydroxyl group with ambient air as the terminal oxidant under ligand- and additive-free conditions
作者:Jian-An Jiang、Cheng Chen、Jian-Gang Huang、Hong-Wei Liu、Song Cao、Ya-Fei Ji
DOI:10.1039/c3gc41946k
日期:——
A hindered para-hydroxyl group-directed remotebenzylicC(sp3)–H oxyfunctionalization has been developed for the straightforward transformation of 2,6-disubstituted 4-cresols, 4-alkylphenols, 4-hydroxybenzyl alcohols and 4-hydroxybenzyl alkyl ethers into various aromatic carbonyl compounds. The ligand- and additive-free Cu(OAc)2-catalyzed atmospheric oxidation mediated by ethylene glycol unlocks a
Practical Ligand-Free Copper-Catalysed Short-Chain Alkoxylation of Unactivated Aryl Bromides
作者:Ying Guo、Xue-Min Fan、Min Nie、Hong-Wei Liu、Dao-Hua Liao、Xian-Dao Pan、Ya-Fei Ji
DOI:10.1002/ejoc.201500500
日期:2015.7
developed with special attention focussed on the applicability of the reaction. Sodiumalkoxide is used as the nucleophile, and the correspondingalcohol as the solvent. The reaction requires neither precious metals nor organic ligands. It uses a catalytic system consisting of copper(I) bromide as a catalyst, the corresponding alkyl formate as a noncontaminating cocatalyst, and lithium chloride as an additive
[EN] IMIDAZO[2,1]THIAZOL-3-ONE DERIVATIVES USEFUL AS DIAGNOSTIC AGENTS FOR ALZHEIMER'S DISEASE<br/>[FR] DÉRIVÉS IMIDAZO[2,1]THIAZOL-3-ONE UTILES COMME AGENTS DE DIAGNOSTIC DE LA MALADIE D'ALZHEIMER
申请人:HOFFMANN LA ROCHE
公开号:WO2014026881A1
公开(公告)日:2014-02-20
The invention relates to imidazo[2,1-b]thiazol-3-one derivatives of formula (I) wherein the variables are as defined in the claims. It has been shown that the present compounds may be used for binding and imaging tau aggregates and related b-sheet aggregates including besides others beta-amyloid aggregates or alpha-synuclein aggregates, especially for use in binding and imaging tau aggregates in Alzheimer patients.
The invention relates to imidazo[2,1-b]thiazol-3-one derivatives of formula
wherein the variables are defined herein,
or to a pharmaceutically acceptable acid addition salt, to a racemic mixture or to its corresponding enantiomer and/or optical isomers thereof.
It has been shown that the present compounds may be used for binding and imaging tau aggregates and related b-sheet aggregates including besides others beta-amyloid aggregates or alpha-synuclein aggregates, especially for use in binding and imaging tau aggregates in Alzheimer's patients.
The present invention relates to an ester represented by the formula [1]:
or its pharmaceutically acceptable salt, or use of the same.
The compound represented by the formula [1] or its pharmaceutically acceptable salt is useful as an agent for the treatment or prophylaxis of hyperlipidemia or the like, since it disappears very rapidly in the living body and has an excellent MTP inhibitory activity.