Chemokine receptor binding heterocyclic compounds with enhanced efficacy
申请人:——
公开号:US20030220341A1
公开(公告)日:2003-11-27
The invention relates to heterocyclic compounds consisting of a core nitrogen atom surrounded by three pendant groups, wherein two of the three pendant groups are preferably benzimidazolyl methyl and tetrahydroquinolyl, and the third pendant group contains N and optionally contains additional rings. The compounds bind to chemokine receptors, including CXCR4 and CCR5, and demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
Synthesis of β-hydroxyacetamides from unactivated ethyl acetates under base-free conditions and microwave irradiation
作者:Eugenio Hernández-Fernández、Pedro Pablo Sánchez-Lara、Mario Ordóñez、Oscar Abelardo Ramírez-Marroquín、Francisco G. Avalos-Alanís、Susana López-Cortina、Víctor M. Jiménez-Pérez、Tannya Rocio Ibarra-Rivera
DOI:10.1016/j.tetasy.2014.11.015
日期:2015.1
unactivated ethyl esters with achiral and chiral 1,2-amino alcohols under microwave irradiation and base-free conditions is described. This procedure provides a convenient method for the synthesis of β-hydroxyacetamides bearing pyrazole, imidazole, and benzimidazole groups in high yields and without racemization. The protocol described herein is environmentally friendly and allows for the preparation of a
the number of methylene group and X is counter anion) were prepared by quaternization of poly(3-chloropropylmethylsiloxane) (P1) using 1-(ω-hydroxyalkyl)imidazole derivatives (ImnOHs) and anion-exchange reaction using lithium bis(trifluoromethanesulfonyl)imide. Polysiloxane-based quaternized imidazolium salts having hydroxyalkyl groups with chloride anion ([HPImnOH]Cls) were obtained with high quaternization
(+/-)-2-Imidazol-1-ylsuccinic esters were synthesized by thermal addition of imidazole to either fumaric or maleic esters. Acceleration of the reaction was achieved, in some cases, using microwave heating. These esters underwent an easy regioselective hydrolysis, under neutral conditions, to give the corresponding half-esters: (+/-)-3-(alkoxycarbonyl)-2-imidazol-1-ylpropionic acids, through either BAC(3) or BAL(1) mechanisms. Kinetic studies in H2O and D2O as well as O-18 and O-17 labeling experiments supported the proposed mechanism. The results of these hydrolyses, which depended on the nature of the alcohol moiety, were compared with those obtained with some imidazol-1-ylacetate analogues or with (+/-)-2-pyrazol-1-yl- and benzimidazol-1-ylsuccinic esters. In general, imidazolylsuccinic esters hydrolyzed faster than the homologous derivatives from pyrazole or benzimidazole.
[EN] 7-OXO -6-(SULFOOXY)- 1,6-DIAZABICYCLO [3.2.1] OCTANE CONTAINING COMPOUNDS AND THEIR USE IN TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] 7-OXO-6-(SULFOOXY)-1,6-DIAZABICYCLO[3.2.1] OCTANE CONTENANT DES COMPOSÉS ET LEUR UTILISATION DANS LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:WOCKHARDT LTD
公开号:WO2017081615A1
公开(公告)日:2017-05-18
Compounds of Formula (I) or a stereoisomer or a pharmaceutically acceptable salt thereof, their preparation, and use in treating a bacterial infection are disclosed.