A simple method for the synthesis of furfuryl ketones and furylacetic acid derivatives
作者:Petrakis N. Chalikidi、Tatyana A. Nevolina、Maxim G. Uchuskin、Vladimir T. Abaev、Alexander V. Butin
DOI:10.1007/s10593-015-1744-z
日期:2015.7
A simple preparative method has been developed for the synthesis of aryl(furfuryl) ketones, amides, and furylacetic acid esters, based on radical alkylation of furan derivatives at the α-position with О-ethyl(phenacyl)xanthogenates and phenacyl iodides in the presence of Fenton's reagent (H2O2/FeSO4 · 7H2O) in DMSO. The range of applicability and mechanisms for the formation of major and side products
一种简单的方法制备已发展为芳基(糠基)酮,酰胺,和呋喃基乙酸酯的合成中,基于在与α位呋喃衍生物的烷基化基团О -乙基(苯甲酰甲基)黄原酸酯和苯甲酰甲基碘化物在存在DMSO中制备的Fenton试剂(H 2 O 2 / FeSO 4 ·7H2O)。已经考虑了主要和副产物形成的适用范围和机理。
Design, synthesis and biological evaluation of uncharged catechol derivatives as selective inhibitors of PTP1B
作者:Xiang-Qian Li、Qi Xu、Jiao Luo、Li-Jun Wang、Bo Jiang、Ren-Shuai Zhang、Da-Yong Shi
DOI:10.1016/j.ejmech.2017.05.007
日期:2017.8
obesity. However, the development of charged PTP1B inhibitors was restricted due to their low cell permeability and poor bioavailability. Based on active natural products, two series of uncharged catecholderivatives were identified as PTP1B inhibitors by targeting a secondary aryl phosphate-binding site as well as the catalytic site. The most potent inhibitor 22 showed an IC50 of 0.487 μM against PTP1B and
series of PC190723 derivatives was synthesized and investigated for their antimicrobial activity. The compounds exhibited good activity against several Gram-positive bacteria as determined by comparison of diameters of the zone of inhibition of test compounds and standard antibiotics. Compound 9 with a fluorine substitution on the phenyl ring showed the best antibacterialactivity in the series against
Benzylpiperazine derivatives. X. Syntheses and structure-antiulcer activity relationship of 1-benzyl-4-piperazineacetic acid esters.
作者:HIROSHI OHTAKA、KENJI YOSHIDA、KENJI SUZUKI、KOICHI SHIMOHARA、SHIGERU TAJIMA、KEIZO ITO
DOI:10.1248/cpb.36.4825
日期:——
A series of ester derivatives of1-benzy1-4-piperazineacetic acid was synthesized and evaluated as antiulcer agents. Quantitative structure-activity relationships (QSAR) analyses by using the ALS (adaptive least-squares) method were performed in each step to decrease the synthetic efforts. The QSAR for the esters is much the same as that for the previously examined amide derivatives. The antiulcer activity of these compounds was considered to be based on the cytoprotective activity. The most active and the least toxic compounds, 5n and 5y, were selected for further study.
Piperazine compounds and anti-ulcer composition containing the same
申请人:Kanebo, Ltd.
公开号:US04797400A1
公开(公告)日:1989-01-10
Novel piperazine compounds of the formula: ##STR1## wherein either one of R.sup.1 and R.sup.2 is methoxy group and another is hydrogen atom, or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-peptic ulcer activities with potent activity for promoting the action of the defensive factor, and hence are useful as an anti-ulcer agent for the prophylaxis and treatment of peptic ulcers.