Reversible Aminal Formation: Controlling the Evaporation of Bioactive Volatiles by Dynamic Combinatorial/Covalent Chemistry
作者:Barbara Buchs née Levrand、Guillaume Godin、Alain Trachsel、Jean-Yves de Saint Laumer、Jean-Marie Lehn、Andreas Herrmann
DOI:10.1002/ejoc.201001433
日期:2011.2
aqueous solutions. Kinetic rate constants and equilibrium constants for the formation and hydrolysis of aminals were determined. The performance of dynamic mixtures as delivery systems for perfumery ingredients was tested after deposition onto cotton, and the long-lastingness of fragrance evaporation was investigated by dynamic headspace analysis against a reference sample. The simplicity of the concept
A minimalistic approach to develop new anti-apicomplexa polyamines analogs
作者:Esteban A. Panozzo-Zénere、Exequiel O.J. Porta、Gustavo Arrizabalaga、Lucía Fargnoli、Shabana I. Khan、Babu L. Tekwani、Guillermo R. Labadie
DOI:10.1016/j.ejmech.2017.11.069
日期:2018.1
The development of new chemical entities against the major diseases caused by parasites is highly desired. A library of thirty diamines analogs following a minimalist approach and supported by chemoinformatics tools have been prepared and evaluated against apicomplexan parasites. Different member of the series of N,N′-disubstituted aliphatic diamines shown in vitroactivities at submicromolar concentrations
迫切需要开发新的化学实体来对抗寄生虫引起的主要疾病。遵循极简主义方法并在化学信息学工具的支持下,已经制备了 30 个二胺类似物的文库,并针对 apicomplexan 寄生虫进行了评估。 N , N'-二取代脂肪族二胺系列的不同成员在亚微摩尔浓度下表现出体外活性,并且对弓形虫以及对氯喹敏感和耐药的恶性疟原虫菌株具有高选择性。为了证明仲胺的重要性,合成了十种N , N , N ', N'-四取代的脂肪族二胺衍生物,其活性比它们的二取代对应物低得多。进行理论研究以确定控制化合物活性的电子因素。
Synthesis and antikinetoplastid activity of a series of N,N′-substituted diamines
作者:Andrea P. Caminos、Esteban A. Panozzo-Zenere、Shane R. Wilkinson、Babu L. Tekwani、Guillermo R. Labadie
DOI:10.1016/j.bmcl.2011.12.101
日期:2012.2
A series of 25 N,N′-substituted diamines were prepared by controlled reductive amination of free aliphaticdiamines with different substituted benzaldehydes. The library was screened in vitro for antiparasitic activity on the causative agents of human African trypanosomiasis, Chagas’ disease and visceral leishmaniasis. The most potent compounds were derived from a subset of diamines that contained
Synthesis, Cytotoxicity, Antibacterial and Antileishmanial Activities of Imidazolidine and Hexahydropyrimidine Derivatives
作者:Gustavo S. G. de Carvalho、Rafael M. P. Dias、Fernando R. Pavan、Clarice Q. F. Leite、Vania L. Silva、Claudio G. Diniz、Daniela T. S. de Paula、Elaine S. Coimbra、Pascal Retailleau、Adilson D. da Silva
DOI:10.2174/1573406411309030005
日期:2013.2.1
This paper describes the synthesis and in vitro biological activities of imidazolidine and hexahydropyrimidine
derivatives against bacteria (Escherichia coli, Staphylococcus aureus and Mycobacterium tuberculosis) and Leishmania
protozoa. Out of sixteen heterocyclic derivatives tested, none were cytotoxic against mammalian cells. The compounds
showed significant bacterial effects and leishmanicidal activity. Compounds 4a and 4c were active against S. aureus and
E. coli, respectively. Compounds 3a-3f, 4h and 4i presented promising results against M. tuberculosis, with MIC values
ranging from 12.5 to 25.0 μg/mL, comparable to the “first and second line” drugs used to treat tuberculosis. Compounds
4a, 4c and 4e were active against L major. Three of them were structurally characterized by single-crystal X-ray diffraction.
本文介绍了咪唑烷和六氢嘧啶衍生物的合成及其对细菌(大肠杆菌、金黄色葡萄球菌和结核分枝杆菌)和利什曼原虫的体外生物活性。在测试的 16 种杂环衍生物中,没有一种对哺乳动物细胞具有细胞毒性。这些化合物具有明显的杀菌作用和杀利什曼原虫活性。化合物 4a 和 4c 分别对金黄色葡萄球菌和大肠杆菌具有活性。化合物 3a-3f、4h 和 4i 对结核杆菌有很好的疗效,其 MIC 值介于 12.5 至 25.0 μg/mL 之间,与用于治疗结核病的 "一线和二线 "药物相当。化合物 4a、4c 和 4e 对大肠杆菌具有活性。单晶 X 射线衍射对其中三种化合物进行了结构表征。
CONTROLLED RELEASE OF ACTIVE ALDEHYDES AND KETONES FROM EQUILIBRATED DYNAMIC MIXTURES
申请人:Herrmann Andreas
公开号:US20100098650A1
公开(公告)日:2010-04-22
The present invention concerns a dynamic mixture obtained by combining, in the presence of water, at least one diamine derivative that includes at least one benzylamine moiety, with at least one active aldehyde or ketone. The inventive mixture is capable of releasing in a controlled and prolonged manner the active compound, in particular those that are perfuming ingredients, into the surrounding environment.