Sc(OTf)<sub>3</sub>-Catalyzed Iodocyclization/Ritter-Type Amidation of <i>N</i>-Alkoxypropiolamides: A Synthetic Strategy for Isoxazol-3(2<i>H</i>)-ones
A Sc(OTf)3-catalyzed iodocyclization/Ritter-type amidation of N-alkoxypropiolamides for the synthesis of 4-iodoisoxazol-3(2H)-ones bearing an amide group has been developed. This domino protocol allows the construction of a valuable heterocycle, isoxazol-3(2H)-one, as well as the introduction of two functional groups. The reaction has a broad substrate scope and can be carried out on a large scale
已经开发了一种 Sc(OTf) 3催化的N-烷氧基丙酰胺的碘环化/Ritter 型酰胺化,用于合成带有酰胺基团的 4-iodoisoxazol-3(2 H )-ones。这种多米诺骨牌协议允许构建有价值的杂环异恶唑-3(2 H )-one,以及引入两个官能团。该反应底物范围广,可大规模进行。对照实验表明,Sc(OTf) 3作为碘环化和酰胺化步骤的双重活化剂。此外,底物中的N-烷氧基抑制了一些副反应。
[EN] BENZIMIDAZOLE DERIVATIVES, COMPOSITIONS CONTAINING THEM, PREPARATION THEREOF AND USES THEREOF<br/>[FR] DERIVES DE BENZIMIDAZOLE, COMPOSITIONS LES CONTENANT ET PREPARATION ET UTILISATION DESDITS DERIVES
申请人:ASTRAZENECA AB
公开号:WO2006033628A1
公开(公告)日:2006-03-30
Compounds of Formula I or pharmaceutically acceptable salts thereof wherein G, R1, R2, R3, R4 and R5 are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.
[EN] PYRAZOLE DERIVATIVES AS SGC STIMULATORS<br/>[FR] DÉRIVÉS DE PYRAZOLE UTILISÉS COMME STIMULATEURS DE SGC
申请人:IRONWOOD PHARMACEUTICALS INC
公开号:WO2016044447A1
公开(公告)日:2016-03-24
There are described imidazole and pyrazole derivatives which are useful as stimulators of sGC, particularly NO-independent, heme-dependent stimulators. These compounds are also useful for treating, preventing or managing various disorders that are herein disclosed.
[EN] 1, 4-SUBSTITUTED PIPERIDINE DERIVATIVES<br/>[FR] DÉRIVÉS DE PIPÉRIDINE 1,4-SUBSTITUÉS
申请人:CEPHALON INC
公开号:WO2016205633A1
公开(公告)日:2016-12-22
Described herein are 1,4-substituted piperidine compounds according to Formula (I) that have demonstrated activity as fatty acid synthase inhibitors. Also described herein are pharmaceutical compositions containing the described 1,4-substituted piperidine compounds, and methods of treating diseases mediated by fatty acid synthase, by administering one or more of the compounds or pharmaceutical formulations described herein. Also described herein are methods of synthesizing the compounds described, including the described 1,4-substituted piperidine compounds and synthetic intermediates useful in those syntheses.