Synthesis and Biological Evaluation of New Tacrine Analogues under Microwave Irradiation
作者:Hossa Fahad Alshareef、Heba Abd El Hady Mohamed、Abdellatif Mohamed Salaheldin
DOI:10.1248/cpb.c17-00113
日期:——
Efficient routes to various kinds of heterocycles incorporating the p-halophenyl moiety have been synthesized. Different pyrrole derivatives have been synthesized, as well, by Thorpe-Ziegler cyclization. Therefore, we synthesized different analogues of tacrine by Friedländer reaction of o-amino nitriles (pyrazolo, furano and pyrrolo) with different cycloalkanones. The use of microwaveirradiation leads
Synthesis of Tacrine Analogs Derived from <i>N</i>-Aryl-5-amino-4-cyanopyrazoles
作者:Lígia M. Rodrigues、Carla S. Francisco、Ana M. F. Oliveira-Campos、Abdellatif M. Salaheldin
DOI:10.1080/00397910802331638
日期:2008.11.13
Synthesis of 11 tacrine analogs derived from N-aryl-5-amino-4-cyanopyrazoles, by a Friedlander type reaction, is described. Their structures were confirmed by 1H and 13C NMR spectroscopy, elemental analysis, and/or mass spectrometry.
Simultaneous Synthesis of Pyrazolopyridines and Pyrazolopyrimidinones Under Microwave Irradiation
作者:Li-Jun Zhang、Da-Xin Shi、Jia-Rong Li
DOI:10.1080/00397910902883629
日期:2009.10.21
The direct reaction of o-aminopyrazocarbonitriles and carbonyl compounds to afford pyrazolopyrimidinones was discovered; hence, a simultaneous synthetic method for pyrazolopyridines and pyrazolopyrimidinones was achieved. Under microwave irradiation, better yields of products than those of conventional method were given.