OXOPIPERIDINE DERIVATIVES, PREPARATION AND THERAPEUTIC USE THEREOF
申请人:Braun Alain
公开号:US20070149562A1
公开(公告)日:2007-06-28
The present invention relates to compounds of formula (I) as defined herein that are melanocortin receptor agonists, to the preparation thereof and to the therapeutic use thereof in the treatment or prevention of a condition selected from obesity, diabetes and sexual dysfunctions that can affect both sexes, in the treatment of cardiovascular diseases, and also in anti-inflammatory uses or in the treatment of alcohol dependency.
Superparamagnetic Fe<sub>3</sub>
O<sub>4</sub>
Nanoparticles in a Deep Eutectic Solvent: An Efficient and Recyclable Catalytic System for the Synthesis of Primary Carbamates and Monosubstituted Ureas
Superparamagnetic Fe3O4 nanoparticles were used to prepare primary carbamates as well as monosubstituted and N,N‐disubstituted ureas. This efficient phosgene‐free process used urea as an eco‐friendly carbonyl source in the presence of a biocompatible deep eutectic solvent (DES) to provide an inexpensive and attractive route that afforded the products in moderate to excellent yields. (MNP = magnetite nanoparticles
超顺磁性Fe 3 O 4纳米颗粒用于制备氨基甲酸酯以及单取代的和N,N-二取代的脲。这种有效的无光气工艺在生物相容性深共熔溶剂(DES)的存在下将尿素用作环保的羰基来源,从而提供了一种廉价且有吸引力的途径,使产品收率适中至优异。(MNP =磁铁矿纳米颗粒,Ch =胆碱)
Phenylureas. Part 1. Mechanism of the basic hydrolysis of phenylureas
作者:Robert Laudien、Rolf Mitzner
DOI:10.1039/b008532o
日期:2001.11.1
The mechanism of the hydrolytic decomposition of phenylureas in basic media in the pH range 12 to 14 is investigated. In this pH range a levelling of the rate–pH curve is observed as well as a change of the substituent influence on the hydrolysis rate. These experimental findings suggest the formation of an unreactive side product of the phenylurea in a parasitic side equilibrium at sufficiently high pH. The urea dissociates at the aryl–NH group to give its conjugate base. For the hydrolytic decomposition of phenylureas an addition–elimination mechanism is proposed as has been established for the alkaline hydrolysis of carboxylic acid esters and amides.
4-Dodecylbenzenesulfonic acid (DBSA) promoted solvent-free diversity-oriented synthesis of primary carbamates, S-thiocarbamates and ureas
作者:Ali Reza Sardarian、Iman Dindarloo Inaloo
DOI:10.1039/c5ra14528g
日期:——
A simple and efficient solvent-free preparation of primary carbamates,S-thiocarbamates and ureas from alcohols, phenols, thiols and amines in the presence of 4-dodecylbenzenesulfonic acid, as a cheap and green Brønsted acid, has been described.
[EN] TETRAHYDROCARBAZOLE DERIVATIVES AND THEIR PHARMACEUTICAL USE<br/>[FR] DERIVES DE TETRAHYDROCARBAZOLE ET LEUR UTILISATION PHARMACEUTIQUE
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2005005386A1
公开(公告)日:2005-01-20
The present invention relates to novel compounds of formula (I), that are useful in the treatment of human papillomaviruses, and also to the methods for the making and use of such compounds.