Synthesis and antitumor evaluation of novel sulfonylcycloureas derived from nitrogen mustard
作者:H. Cheloufi、B. Belhani、T. S. Ouk、R. Zerrouki、N.-E. Aouf、M. Berredjem
DOI:10.1007/s11030-015-9647-6
日期:2016.5
A new series of sulfonylcycloureas derivatives have been synthesized and evaluated in vitro for their antitumor activity against four cancer cell lines (A431, Jurkat, U266, and K562). These compounds were prepared by the condensation of several sulfonamides (2a–m) with ethyl bis(2-chloroethyl)carbamate (1a). The relative cytotoxicity of these new derivatives in comparison to chlorambucil is reported
An eco-friendly, simple, mild, chemo selective and highly efficient procedure for the acylation of primary and secondary amine function in various structurally and electronically aliphatic and aromatic compounds affording their corresponding N-Ac derivatives is developed. Mild conditions, simplicity and easier work-up are the main advantages of this method.
N-Sulfamoyl-piperidineamides for the treatment or inhibition of obesity and related conditions
申请人:Antel Jochen
公开号:US20070149512A1
公开(公告)日:2007-06-28
The present invention relates to novel N-sulfamoyl-piperidineamides of Formula I and their physiologically acceptable acid addition salts, to pharmaceutical compositions comprising them, processes for their preparation, and their use for the treatment of obesity and its concomitant and/or secondary diseases and related or other conditions.
Simple, rapid, and clean condensation of sulfonamide and maleic anhydride derivatives: Synthesis of novel 1<i>H</i>- Pyrrole-2,5-diones under heterogeneous conditions
GRAPHICAL ABSTRACT ABSTRACT H6P2W18O62 is used as an efficient catalyst for the synthesis of novel N-substituted sulfonyl maleimides (1H-Pyrrole-2,5-diones) via the condensation of sulfonamide and maleic anhydride derivatives. The Dawson heteropolyacid was used with a catalytic amount of 2 mmol% in acetonitrile at reflux. The reuse of H6P2W18O62 as heterogeneous catalyst several times without decrease
Efficient<i>N</i>-acylation of sulfonamides using cesium salt of Wells–Dawson heteropolyacid as catalyst: Synthesis of new<i>N</i>-acyl sulfonamides and cyclic imides
Abstract N-acylation of substituted sulfonamides with different anhydrides in the presence of Cesium salt of Wells–Dawson heteropolyacid (Cs5HP2W18O62) as an efficient and reusable catalyst was investigated for the first time. Cs5HP2W18O62 was used with a catalytic amount in water as a green solvent. At room temperature, a series of N-acylsulfonamides were synthesized, while under refluxing conditions