吲哚美辛的酯衍生物是通过将吲哚美辛与等摩尔量的适当醇化合物在无水二氯甲烷中在DCC和DMAP存在下缩合而制备的。为了确认其结构,进行了由IR,1 H NMR,质量和微量分析组成的光谱研究。使用角叉菜胶大鼠爪浮肿方法进行体内抗炎研究,并通过溃疡指数法对合成化合物进行体内致溃疡研究。与消炎痛相比,在11种化合物中,化合物IIc显示出中等的抗炎活性,没有可观察到的致溃疡作用。此外,化合物IIc通过比色COX抑制剂筛选试验,以20μM的浓度对吲哚美辛和塞来昔布针对COX-1和COX-2酶进行了测试。发现化合物IIc对COX-2和COX-1酶具有活性,分别表现出62.0和12.9%的抑制作用。
Synthesis of oligo(ethylene glycol) substituted phosphatidylcholines: Secretory PLA2-targeted precursors of NSAID prodrugs
作者:Renato Rosseto、Joseph Hajdu
DOI:10.1016/j.chemphyslip.2009.10.001
日期:2010.1
A series of new phosphatidylcholine analogues with structurally modified sn-2-substituents have been prepared. The synthetic compounds include oligo(ethylene glycol) derivatives with chain-terminal pharmacophores that upon catalytic hydrolysis by phospholipase A(2) yielded a series of oligo(ethylene glycol)-conjugates of the respective drugs. The approach here outlined may open a new way to employ OEG derivatives of phospholipids for therapeutic applications as secretory PLA(2)-targeted precursors of prodrugs. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
Photocatalytic Water‐Splitting Coupled with Alkanol Oxidation for Selective
<i>N</i>
‐alkylation Reactions over Carbon Nitride
作者:Yangsen Xu、Zhaofei Zhang、Chuntian Qiu、Shaoqin Chen、Xiang Ling、Chenliang Su
DOI:10.1002/cssc.202002459
日期:2021.1.21
(PWST) enables the direct use of water as appealing “liquid hydrogen source” for transferhydrogenation reactions. Currently, the development of PWST‐based transferhydrogenations is still in an embryonic stage. Previous reports generally centered on the rational utilization of the in situ generated H‐source (electrons) for hydrogenations, in which photogenerated holes were quenched by sacrificial
Synthesis and biological evaluation of ester derivatives of indomethacin as selective COX-2 inhibitors
作者:M. Arockia Babu、Rakesh Shukla、Chandishwar Nath、S. G. Kaskhedikar
DOI:10.1007/s00044-011-9747-5
日期:2012.9
The esterderivatives of indomethacin were prepared by condensing indomethacin with an equimolar quantity of an appropriate alcoholic compound in anhydrous dichloromethane in the presence of DCC and DMAP. Spectral studies comprising of IR, 1H NMR, mass, and microanalysis were performed in order to confirm their structures. In vivo anti-inflammatory studies were carried out using carrageenan rat paw
吲哚美辛的酯衍生物是通过将吲哚美辛与等摩尔量的适当醇化合物在无水二氯甲烷中在DCC和DMAP存在下缩合而制备的。为了确认其结构,进行了由IR,1 H NMR,质量和微量分析组成的光谱研究。使用角叉菜胶大鼠爪浮肿方法进行体内抗炎研究,并通过溃疡指数法对合成化合物进行体内致溃疡研究。与消炎痛相比,在11种化合物中,化合物IIc显示出中等的抗炎活性,没有可观察到的致溃疡作用。此外,化合物IIc通过比色COX抑制剂筛选试验,以20μM的浓度对吲哚美辛和塞来昔布针对COX-1和COX-2酶进行了测试。发现化合物IIc对COX-2和COX-1酶具有活性,分别表现出62.0和12.9%的抑制作用。