Synthesis of 3-Substituted 2,1-Benzisoxazoles by the Oxidative Cyclization of 2-Aminoacylbenzenes with Oxone
作者:Antonio Arcadi、Marco Chiarini、Luana Del Vecchio、Fabio Marinelli、Leucio Rossi
DOI:10.1055/s-0035-1561471
日期:——
An efficient approach to the synthesis of 2,1-benzisoxazoles through direct construction of the N–O bond by the chemoselective oxidation of 2-aminoacylbenzenes with Oxone is described. This alternative methodology is characterized by its simple and transition-metal-free conditions and good functional group compatibility utilizing Oxone as a green oxidant instead of hypervalent iodine compounds. Moreover
Synthesis and cdc25B inhibitory activity evaluation of chalcones
作者:Fei Zhao、Qing-Jie Zhao、Jing-Xia Zhao、Da-Zhi Zhang、Qiu-Ye Wu、Yong-Sheng Jin
DOI:10.1007/s10600-013-0563-7
日期:2013.5
A library of sixty-five chalcones was prepared for screening against the protein phosphatase, cdc25B. From this library, thirteen compounds were found having good inhibitory activity. Two compounds have excellent activity and can be used for the design of more potent antiproliferative agents.
annulation with glutaconate to provide straightforward access to phenanthridine‐8‐carboxylates and hydrophenanthridine‐8‐carboxylates under mild aerobic conditions. In this domino transformation, two rings and three bonds were successively created. A mechanism involving tandem [3+3]‐annulation/intramolecularcyclization/ demethoxycarbonylation/aerobic oxidative aromatization sequence was proposed.
The synthesis and synergistic antifungal effects of chalcones against drug resistant Candida albicans
作者:Yuan-Hua Wang、Huai-Huai Dong、Fei Zhao、Jie Wang、Fang Yan、Yuan-Ying Jiang、Yong-Sheng Jin
DOI:10.1016/j.bmcl.2016.05.013
日期:2016.7
toxicity synergistic antifungal compounds, 24 derivatives of chalcone were synthesized to restore the effectiveness of fluconazoleagainst fluconazole-resistant Candida albicans. The minimal inhibitory concentration (MIC80) and the fractional inhibitory concentration index (FICI) of the antifungalsynergistfluconazole were measured against fluconazole-resistant Candida albicans. This was done via methods
p-TsOH-promoted synthesis of (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines via cascade intramolecular aza-Michael addition/Friedlander condensation of 2′-aminochalcones in a SDS/H<sub>2</sub>O system
作者:Makthala Ravi、Parul Chauhan、Shikha Singh、Ruchir Kant、Prem. P. Yadav
DOI:10.1039/c6ra04837d
日期:——
Brønsted acid-promoted cascade synthesis of novel (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines has been achieved via homodimerization of 2′-aminochalcones by employing sodium dodecylsulphate (SDS) as a surfactant in water. Besides water as an environmentally benign reaction medium, the reaction proceeds smoothly with high atom-economy under a sequential one-pot protocol.