Synthesis of novel 3-carboxamide-benzocoumarin derivatives as orally active antithrombotic agents
摘要:
In an effort to develop potent antithrombotic agents, a series of novel 3-carboxamide-benzocoumarin derivatives were synthesized and screened for their in vivo antithrombotic activity. Among 20 compounds tested, the compound 12b showed the most promising antithrombotic activity which was comparable with clinically used aspirin or warfarin, but, at variance with these standard drugs, 12b did not exhibit the increased bleeding time, suggesting its potential as a novel antithrombotic agent. (C) 2011 Elsevier Ltd. All rights reserved.
applications. The expression or activity of specific enzymes including proteases can be monitored by cutting edge molecular imaging techniques. Cathepsin B plays key roles in tumor progression via controlled degradation of extracellular matrix. Consequently, this protease has been attracting significant attention in cancer research, and many imaging probes targeting itsactivity have been developed. Here
A novel 1-hydroxy-2,4-diformylnaphthalene-based fluorescent probe L was synthesized by a Knoevenagel reaction and exhibited excellent sensitivity and selectivity towards sulfiteions (SO32−) and bisulfite ions (HSO3−). The detection limits of the probe L were 0.24 μM using UV-Vis spectroscopy and 9.93 nM using fluorescence spectroscopy, respectively. Furthermore, the fluorescent probe L could be utilized
A simple, highly stable, sensitive and selective fluorescent system for peroxide explosives was developedviaan aromatic aldehyde oxidation reaction.
通过芳香醛氧化反应,开发了一种简单、高稳定性、敏感性和选择性的过氧化物炸药荧光系统。
Unusual Reaction of 6-Formyl-2-oxo-2H-benzo[h]chromene-3-carboxylic Acid Ethyl Ester with Aliphatic Amines
作者:Koneni V. Sashidhara、Jammikuntla N. Rosaiah、Abdhesh Kumar
DOI:10.1080/00397910902916056
日期:2009.12.15
The unusual reaction of coumarone systems when exposed to aliphatic amines is described. The stability and formation of these compounds is discussed with respect to its substituents at para position, and it was found that the para substituents have no role to play.