Synthesis, biological evaluation of 9-N-substituted berberine derivatives as multi-functional agents of antioxidant, inhibitors of acetylcholinesterase, butyrylcholinesterase and amyloid-β aggregation
摘要:
A series of 9-N-substituted berberine derivatives were synthesized and biologically evaluated as antioxidant and inhibitors of acetylcholinesterase (AChE), butyrylcholinesterase and amyloid-beta aggregation. Most of these compounds exhibited very good antioxidant activities, inhibitive activities of AChE and amyloid-beta aggregation. Among them, compound 8d, (o-methylphenethyl)amino linked at the 9-position of berberine, was found to be a good antioxidant (with 4.05 mu M of Trolox equivalents), potent inhibitor of AChE (an IC50 value of 0.027 mu M), and high active inhibitor of amyloid-beta aggregation (an IC50 value of 2.73 mu M). (C) 2011 Elsevier Masson SAS. All rights reserved.
The condensation of primary amine with N,N-dimethylacetamide dimethyl acetal yields a mixture of acetamidine and imidate ester. The product distribution in this reaction depends on the temperature, solvent, and structure of the primary amine. It is possible to suppress the formation of imidate ester by performing the reaction in the presence of excess dimethyl amine, yielding acetamidine as the exclusive product. For acetamidines that cannot be purified either by crystallization or distillation, this new method is necessary for the generation of pure acetamidines in good yields.
[EN] USE OF PHENOXYALKYLAMINES IN COSMETIC AND/OR DERMATOLOGICAL COMPOSITIONS<br/>[FR] UTILISATION DE PHÉNOXYALKYLAMINES DANS DES COMPOSITIONS COSMÉTIQUES ET/OU DERMATOLOGIQUES
申请人:OREAL
公开号:WO2010004016A1
公开(公告)日:2010-01-14
The invention relates to the use of compounds of the phenoxyalkylamine family of formula (I) in cosmetic and/or dermatological compositions, especially as preserving agents. The invention also relates to compositions comprising, especially as preserving agent, at least one phenoxyalkylamine of formula (I). The invention also relates to particular compounds of the phenoxyalkylamine family of formula (I) and to cosmetic and/or dermatological compositions containing them.
Design, synthesis, crystal structure, and herbicidal activity of novel pyrrolidine-2,4-dione derivatives incorporating an alkyl ether pharmacophore with natural tetramic acids as lead compounds
作者:Min Chen、Chun-Wen Geng、Ling Han、Yu Liu、Yong-Kai Yu、Ai-Min Lu、Chun-Long Yang、Guo-Hua Li
DOI:10.1039/d1nj00119a
日期:——
Z-configuration. The herbicidalactivity was evaluated using barnyard grass (Echinochloa crus-galli) and rape (Brassica campestris) as model plants by a Petri dish culture method. Most target compounds were found to possess moderate to good inhibitory activities against the plant growth at 100 μg mL−1. Among them, the compounds 10q and 10n showed the highest herbicidalactivities against the roots of
为了发现具有新型分子支架的绿色除草剂,使用天然四酸作为先导化合物来设计和合成四种结合了链状烷氧基烷基部分(4a–4d)和十九种吡咯烷-2,4-的吡咯烷-2,4-二酮衍生物。通过取代,酰化,环化和酸化反应掺入取代的苯氧乙基部分(10a-10s)的二酮衍生物。通过FT-IR,1 H NMR,13 C NMR和HRMS光谱分析确认了合成的目标化合物。化合物10a的单晶结构X-射线衍射分析表明,1-羟基亚乙烯基通过具有Z-构型的双键连接吡咯烷杂环的第三位置。通过培养皿培养法,以bar草(Echinochloa crus-galli)和油菜(Brassica campestris)为模型植物来评价除草活性。发现大多数目标化合物在100μgmL -1时对植物生长具有中等至良好的抑制活性。其中,化合物10q和10n对草和油菜幼苗的根系表现出最高的除草活性,相应的抑制率分别为65.6%和84.0%。该结果
New N-(phenoxydecyl)phthalimide derivatives displaying potent inhibition activity towards α-glucosidase
作者:Rossana Pascale、Alessia Carocci、Alessia Catalano、Giovanni Lentini、Anna Spagnoletta、Maria Maddalena Cavalluzzi、Francesco De Santis、Annalisa De Palma、Vito Scalera、Carlo Franchini
DOI:10.1016/j.bmc.2010.06.088
日期:2010.8
Several members of a new family of non-sugar-type α-glucosidase inhibitors, bearing a phthalimide moiety connected to a variously substituted phenoxy ring by an alkyl chain, were synthesized and their activities were investigated. The efficacy of the inhibition activity appeared to be governed by the chain length of the substrate. Substrates possessing 10 carbons afforded the highest levels of activity
The present invention relates to small molecule compounds and their use in the treatment of bacterial infections, in particular Tuberculosis.
本发明涉及小分子化合物及其在治疗细菌感染,特别是结核病方面的用途。
Synthesis of 1,4-benzodiazepino[4,5-<i>d</i>][1,4]benzoxazepines
作者:Richard C. Effland、Grover C. Helsley、John J. Tegeler
DOI:10.1002/jhet.5570190317
日期:1982.5
The novel 1,4-benzodiazepino[4,5-d][1,4]benzoxazepine ring system has been constructed via preformed benzoxazepine intermediates. Several derivatives have been prepared as potential anxiolytic agents.
新型1,4-苯并二氮杂[4,5- d ] [1,4]苯并氮杂pine环体系是通过预制的苯并氮杂pine中间体构建的。已经制备了几种衍生物作为潜在的抗焦虑剂。