نتایج جستجو برای: piperidines

تعداد نتایج: 269  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Alan R Katritzky Zuoquan Wang Svetoslav Slavov Maia Tsikolia Dimitar Dobchev Novruz G Akhmedov C Dennis Hall Ulrich R Bernier Gary G Clark Kenneth J Linthicum

Mosquito repellency data on acylpiperidines derived from the U.S. Department of Agriculture archives were modeled by using molecular descriptors calculated by CODESSA PRO software. An artificial neural network model was developed for the correlation of these archival results and used to predict the repellent activity of novel compounds of similar structures. A series of 34 promising N-acylpiper...

2014
Yu-Ting Yu Hong-Yi Wei Henry Y. Fadamiro Li Chen

A method based on silica gel chromatography and GC-MS/GC-FID analyses was developed for the quantitation of alkaloidal compounds in imported fire ants, Solenopsis richteri, S. invicta, and their hybrid found in the southern United States. The cis and trans alkaloids from fire ant body extracts were successfully separated by silica gel chromatography, identified by GCMS, and quantitated by GC-FI...

Journal: :Acta poloniae pharmaceutica 2012
Divyesh Patel Rahul Patel Premlata Kumari Navin Patel

A series of 1,3,5-triazine derivatives that contain aniline, 4-hydroxycoumarin and 7-hydroxy-4-methylcoumarin and different piperazines and piperidines as substituents on the carbon atoms of the triazine ring has been synthesized by a simple and efficient synthetic protocol. Comparative studies were performed on above compounds, which were synthesized with conventional and microwave heating met...

Journal: :Annals of agricultural and environmental medicine : AAEM 2012
Przemysław Biliński Piotr Hołownia Lucyna Kapka-Skrzypczak Andrzej Wojtyła

As the second and concluding part, this paper continues the summary review of the scientific evidence obtained from the literature and focuses on the remaining 4/6 groupings of DDs identified in illegal products found in the huge drug seizures made recently in Poland. They consist of piperazines/piperidines, phenylethylamines, tryptamines, (briefly mentioned), and a miscellaneous 'others' categ...

2017
Tian Tian Yanyan Song Lai Wei Jiaqi Wang Boshi Fu Zhiyong He Xi-Ran Yang Fan Wu Guohua Xu Si-Min Liu Conggang Li Shaoru Wang Xiang Zhou

Supramolecular chemistry addresses intermolecular forces and consequently promises great flexibility and precision. Biological systems are often the inspirations for supramolecular research. The G-quadruplex (G4) belongs to one of the most important secondary structures in nucleic acids. Until recently, the supramolecular manipulation of the G4 has not been reported. The present study is the fi...

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