Oxidation of sp3 C H bonds in N-alkylhydrazides: Access to 2,5-disubstituted 1,3,4-oxadiazole derivatives
摘要:
The oxidation of sp(3) C-H bonds in N-alkylhydrazides was achieved en route to the efficient synthesis of a broad series of 1,3,4-oxadiazoles. Mechanistic studies have revealed that N-acylhydrazone is a key intermediate in this catalytic transformation. (C) 2016 Elsevier Ltd. All rights reserved.
[EN] DIARYLALKYL CYCLIC DIAMINE DERIVATIVES AS CHEMOKINE RECEPTOR ANTAGONISTS<br/>[FR] DERIVES DE DIAMINE CYCLIQUE DE DIARYLAKLYLE UTILISES EN TANT QU'ANTAGONISTES DES RECEPTEURS DE CHIMIOKINES
申请人:TEIJIN LIMITED
公开号:WO1997044329A1
公开(公告)日:1997-11-27
(EN) Cyclic diamines of formula (I) or their pharmacologically acceptable acid addition salts, and their medical applications are described. These compounds inhibit the action of chemokines such as MIP-la and/or MCP-l on target cells, and are useful as a therapeutic drug and/or preventative drug in diseases, such as atherosclerosis, rheumatoid arthritis, and the like where blood monocytes and lymphocytes infiltrate into tissues.(FR) Diamines cycliques de formule (I) ou leur sels d'addition d'acide pharmaceutiquement acceptables ainsi que leurs applications médicales. Ces composés inhibent l'action de chimiokines telles que MIP-1a et/ou MCP-1 sur des cellules cibles, et sont utiles en tant que médicaments thérapeutiques et/ou préventifs dans les maladies telles que l'athérosclérose, l'arthrite rhumatoïde et similaire dans lesquelles les monocytes et les lymphocytes s'infiltrent dans les tissus.
DIARYLALKYL CYCLIC DIAMINE DERIVATIVES AS CHEMOKINE RECEPTOR ANTAGONISTS
申请人:TEIJIN LIMITED
公开号:EP0914319B1
公开(公告)日:2001-11-21
US6686353B1
申请人:——
公开号:US6686353B1
公开(公告)日:2004-02-03
<i>N</i>,<i>N</i>′-Di(acylamino)-2,5-diketopiperazines: Strategic Incorporation of Reciprocal n → π* Interactions in a Druglike Scaffold
作者:Abdur Rahim、Biswajit Sahariah、Bani Kanta Sarma
DOI:10.1021/acs.orglett.8b02449
日期:2018.9.21
The incorporation of the recently discovered reciprocal n → π* interactions in 2,5-diketopiperazines (DKPs) is reported to design a novel N,N′-di(acylamino)-2,5-diketopiperazine (daa-DKP) scaffold. The design, synthesis, and structural features of daa-DKPs and the effect of reciprocal n → π* interactions in their structural rigidity is discussed.
The oxidation of sp(3) C-H bonds in N-alkylhydrazides was achieved en route to the efficient synthesis of a broad series of 1,3,4-oxadiazoles. Mechanistic studies have revealed that N-acylhydrazone is a key intermediate in this catalytic transformation. (C) 2016 Elsevier Ltd. All rights reserved.