15153-13-6Relevant articles and documents
N-Terminal guanidine derivatives of teicoplanin antibiotics strongly active against glycopeptide resistant Enterococcus faecium
Sz?cs, Zsolt,Bereczki, Ilona,R?th, Erzsébet,Milánkovits, Márton,Ostorházi, Eszter,Batta, Gyula,Nagy, Lajos,Dombrádi, Zsuzsanna,Borbás, Anikó,Herczegh, Pál
, p. 603 - 614 (2020/05/19)
Antibiotic resistance is one of the major challenges in healthcare of our time. To meet this challenge, we designed and prepared guanidine and lipophilic guanidine derivatives of the glycopeptide antibiotic teicoplanin to armed them with activity against
Convenient synthesis of unsymmetrical N,N′-disubstituted thioureas in water
Li, Zhengyi,Chen, Yuan,Yin, Yue,Wang, Zhiming,Sun, Xiaoqiang
, p. 670 - 673 (2016/11/18)
A simple and convenient two-step method has been developed and used to synthesise 25 (4 of which are novel) unsymmetrical N,N′-disubstituted thioureas in water. Alkylamines or variously substituted arylamines reacted smoothly with phenyl chlorothionoformate at room temperature to form thiocarbamates, which were then reacted with another alkyl- or arylamine in water at reflux to afford the unsymmetrical N,N′-disubstituted thioureas in good to excellent yields. Mild conditions, simple work-up, high yields as well as using water as solvent are the major advantages of the method.
METHODS OF PRODUCING METAL SUFLIDES, METAL SELENIDES, AND METAL SULFIDES/SELENIDES HAVING CONTROLLED ARCHITECTURES USING KINETIC CONTROL
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Paragraph 0204; 0205; 0214, (2017/05/28)
The present invention is directed to methods of preparing metal sulfide, metal selenide, or metal sulfide/selenide nanoparticles and the products derived therefrom. In various embodiments, the nanoparticles are derived from the reaction between precursor metal salts and certain sulfur- and/or selenium-containing precursors each independently having a structure of Formula (I), (II), or (III), or an isomer, salt, or tautomer thereof, where Q1,Q2,Q3,R1,R2,R3,R5, and X are defined within the specification.
A Tunable library of substituted thiourea precursors to metal sulfide nanocrystals
Hendricks, Mark P.,Campos, Michael P.,Cleveland, Gregory T.,Plante, Ilan Jen-La,Owen, Jonathan S.
, p. 1226 - 1230 (2015/06/22)
Controlling the size of colloidal nanocrystals is essential to optimizing their performance in optoelectronic devices, catalysis, and imaging applications. Traditional synthetic methods control size by terminating the growth, an approach that limits the reaction yield and causes batch-to-batch variability. Herein we report a library of thioureas whose substitution pattern tunes their conversion reactivity over more than five orders of magnitude and demonstrate that faster thiourea conversion kinetics increases the extent of crystal nucleation. Tunable kinetics thereby allows the nanocrystal concentration to be adjusted and a desired crystal size to be prepared at full conversion. Controlled precursor reactivity and quantitative conversion improve the batch-tobatch consistency of the final nanocrystal size at industrially relevant reaction scales.
Thiourea isosteres as anion receptors and transmembrane transporters
Wenzel, Marco,Light, Mark E.,Davis, Anthony P.,Gale, Philip A.
supporting information; experimental part, p. 7641 - 7643 (2011/09/15)
Compounds containing cyanoguanidine and 3-amino-1,2,4-benzothiadiazine-1,1- dioxide have been studied as anion receptors and transporters. Significant affinity for oxo-anions was observed in organic solution and the receptors were found to function as tra