Direct synthesis of arenecarboxamides through Friedel–Crafts acylation using ureas
摘要:
The reaction of urea derivatives that contain the phenothiazine unit with trifluoromethanesulfonic anhydride in the presence of electron-rich aromatic compounds leads to the formation of arenecarboxamides. The reaction has been successfully demonstrated for several inter- and intramolecular systems. (C) 2014 Elsevier Ltd. All rights reserved.
Differential binding of phenothiazine urea derivatives to wild-type human cholinesterases and butyrylcholinesterase mutants
摘要:
A series of N-10 urea derivatives of phenothiazine was synthesized and each compound was evaluated for its ability to inhibit human cholinesterases. Most were specific inhibitors of BuChE. However, the potent inhibitory effects on both cholinesterases of one sub-class, the cationic aminoureas, provide an additional binding mechanism to cholinesterases for these compounds. The comparative effects of aminoureas on wild-type BuChE and several BuChE mutants indicate a binding process involving salt linkage with the aspartate of the cholinesterase peripheral anionic site. The effect of such compounds on cholinesterase activity at high substrate concentration supports ionic interaction of aminoureas at the peripheral anionic site. (C) 2010 Elsevier Ltd. All rights reserved.
Differential binding of phenothiazine urea derivatives to wild-type human cholinesterases and butyrylcholinesterase mutants
作者:Sultan Darvesh、Ian R. Pottie、Katherine V. Darvesh、Robert S. McDonald、Ryan Walsh、Sarah Conrad、Andrea Penwell、Diane Mataija、Earl Martin
DOI:10.1016/j.bmc.2010.01.066
日期:2010.3
A series of N-10 urea derivatives of phenothiazine was synthesized and each compound was evaluated for its ability to inhibit human cholinesterases. Most were specific inhibitors of BuChE. However, the potent inhibitory effects on both cholinesterases of one sub-class, the cationic aminoureas, provide an additional binding mechanism to cholinesterases for these compounds. The comparative effects of aminoureas on wild-type BuChE and several BuChE mutants indicate a binding process involving salt linkage with the aspartate of the cholinesterase peripheral anionic site. The effect of such compounds on cholinesterase activity at high substrate concentration supports ionic interaction of aminoureas at the peripheral anionic site. (C) 2010 Elsevier Ltd. All rights reserved.
Direct synthesis of arenecarboxamides through Friedel–Crafts acylation using ureas
作者:Wenjiang Ying、Lalith S.R. Gamage、Luke R. Lovro、James W. Herndon、Nathan W. Jenkins、James W. Herndon
DOI:10.1016/j.tetlet.2014.06.056
日期:2014.8
The reaction of urea derivatives that contain the phenothiazine unit with trifluoromethanesulfonic anhydride in the presence of electron-rich aromatic compounds leads to the formation of arenecarboxamides. The reaction has been successfully demonstrated for several inter- and intramolecular systems. (C) 2014 Elsevier Ltd. All rights reserved.