[EN] PIPERIDINE-DIONE DERIVATIVES<br/>[FR] DÉRIVÉS DE PIPÉRIDINE-DIONE
申请人:HOFFMANN LA ROCHE
公开号:WO2015140133A1
公开(公告)日:2015-09-24
The invention provides novel compounds having the general formula (I) and tautomers and pharmaceutically acceptable salts thereof, wherein A1, A2, A3, A4, R1, R4, R5, R6, R7 and R8 are as defined herein, compositions including the compounds and methods of using the compounds.
Synthesis of nitroimidazole substituted 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dione dioximes (propylene amine oximes, PnAOs): Ligands for technetium-99m complexes with potential for imaging hypoxic tissue
作者:Kondareddiar Ramalingam、Natarajan Raju、Palaniappa Nanjappan、David P. Nowotnik
DOI:10.1016/0040-4020(95)00042-7
日期:1995.3
synthesized as precursors to nitroimidazole-substituted 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dionedioxime (21b, 21d, 21e and 26a-26c) (PropyleneAmineOxime, PnAO) ligands. 3-Chloro-3-methyl-1-(2- or 4-nitro-I H-imidazol-1-yl)-2-nitroso-butanes (18a-e) required for the syntheses of nitroimidazolesubstitutedpropyleneamineoxime (PnAO) ligands were prepared from the corresponding dimethylallyl-nitroimidazoles
can reductively desymmetrize a large collection of easily available halomalonic esters to α-halo-β-hydroxyesters. These polyfunctionalized tertiary alkyl fluorides, chlorides, and bromides proved to be useful intermediates toward fluorinated drug analogs and polyhalogenated monoterpenes. The facile intramolecularepoxidation of the chiral chloride and bromide products has also enabled expeditious access
[EN] A PROCESS FOR THE PREPARATION OF 2-ACETOXYMETHYL-4 HALO-BUT-1-YL ACETATES<br/>[FR] PROCEDE DE PREPARATION D'ACETATES DE 2-ACETOXYMETHYL-4 HALO-BUT-1-YLE
申请人:RECORDATI CHEM PHARM
公开号:WO2004007418A1
公开(公告)日:2004-01-22
A process for the preparation of 2- acetoxymethyl-4-halo-but-l-yl acetates (I) in which X is chlorine or bromine, which are useful intermediates for the preparation of antiviral medicaments such as Penciclovir and Famciclovir, comprising the opening of 3-hydroxymethyl-tetrahydrofuran (V) in the presence of an acylating agent and a Lewis acid selected from magnesium bromide and samarium triiodide.
[EN] NEW POSITIVE ALLOSTERIC MODULATORS OF NICOTINIC ACETYLCHOLINE RECEPTOR<br/>[FR] NOUVEAUX EFFECTEURS ALLOSTÉRIQUES POSITIFS DU RÉCEPTEUR NICOTINIQUE DE L'ACÉTYLCHOLINE
申请人:LUNDBECK & CO AS H
公开号:WO2014049133A1
公开(公告)日:2014-04-03
The present invention relates to indole derivatives useful in therapy, to compositions comprising said compounds, and to methods of treating diseases comprising administration of said com- pounds. The compounds referred to are positive allosteric modulators (PAMs) of the nicotinic acetylcholine α7 receptor.