Design, synthesis, and<i>In vitro</i>antituberculosis activity of 2(5<i>H</i>)-Furanone derivatives
作者:Andile H. Ngwane、Jenny-Lee Panayides、Franck Chouteau、Lubabalo Macingwana、Albertus Viljoen、Bienyameen Baker、Eliya Madikane、Carmen de Kock、Lubbe Wiesner、Kelly Chibale、Christopher J. Parkinson、Edwin M. Mmutlane、Paul van Helden、Ian Wiid
DOI:10.1002/iub.1526
日期:2016.8
bacteria. It also showed synergistic activity with rifampicin (RIF) and additive activity with isoniazid (INH) and ethambutol (EMB). Additional time‐kill studies showed that the compound is bacteriostatic to mycobacteria, but cytotoxic to the Chinese Hamster Ovarian (CHO) cell line. From a second generation library, two compounds showed improved anti‐TB activity against M. tuberculosis H37Rv and decreased
Further Utilization of Mucohalic Acids: Palladium-Free, Regioselective Etherification and Amination of α,β-Dihalo γ-Methoxycarbonyloxy and γ-Acetoxy Butenolides
作者:Peter G. Blazecka、Daniel Belmont、Tim Curran、Derek Pflum、Ji Zhang
DOI:10.1021/ol035994n
日期:2003.12.1
[GRAPHICS]Palladium-free etherification and amination of mucohalic acid methyl carbonates le (3,4-dichloro-5-methoxycarbonyloxy-5H-furan-2-one) and 1f (3,4-dibromo-5-methoxycarbonyloxy-5H-furan-2-one) and mucochloric acid acetate 1h (3,4-dichloro-5-acetoxy-5H-furan-2-one) was achieved to afford gamma-functionalized alpha,beta-unsaturated gamma-butyrolactones in good to excellent yield.
[EN] PREPARATION OF SUBSTITUTED BUTENOLIDES VIA PALLADIUM-FREE ETHERIFICATION AND AMINATION OF MASKED MUCOHALIC ACIDS<br/>[FR] PREPARATION DE BUTENOLIDES SUBSTITUES PAR ETHERIFICATION SANS PALLADIUM ET AMINATION D'ACIDES MUCOHALIQUES MASQUES
申请人:WARNER LAMBERT CO
公开号:WO2005026141A2
公开(公告)日:2005-03-24
Methods and materials for preparing 4-substituted-2-buten-4-olidos are disclosed. The methods include reacting a masked mucohalic acid with a primary or secondary amine or with an arylol in the presence of a base. Unlike existing processes, the disclosed methods do not require the use of palladium, which make them well suited for preparing intermediates in drug syntheses.
Preparation of substituted butenolides via palladium-free etherification and amination of masked mucohalic acids
申请人:Blazecka Garth Peter
公开号:US20050059831A1
公开(公告)日:2005-03-17
Methods and materials for preparing 4-substituted-2-buten-4-olides are disclosed. The methods include reacting a masked mucohalic acid with a primary or secondary amine or with an arylol in the presence of a base. Unlike existing processes, the disclosed methods do not require the use of palladium, which make them well suited for preparing intermediates in drug syntheses.