[EN] COMPOUNDS AND METHODS FOR THE TREATMENT OR PREVENTION OF FLAVIVIRUS INFECTIONS<br/>[FR] COMPOSES ET PROCEDES DE TRAITEMENT OU DE PREVENTION D'INFECTIONS A FLAVIVIRUS
申请人:VIROCHEM PHARMA INC
公开号:WO2004052885A1
公开(公告)日:2004-06-24
The present invention provides novel compounds represented by formula (I) or pharmaceutically acceptable salts thereof useful for treating flaviviridae viral infection.
本发明提供了一种表示为式(I)的新化合物,或其在药学上可接受的盐,用于治疗黄病毒科病毒感染。
Novel quinuclidinyl heteroarylcarbamate derivatives as muscarinic receptor antagonists
Herein, we describe the synthesis and pharmacological profiles of novel quinuclidinyl heteroarylcarbamate derivatives. Among them, the quinuclidin-4-yl thiazolylcarbamate derivative ASP9133 was identified as a promising long-acting muscarinic antagonist (LAMA) showing more selective inhibition of bronchoconstriction against salivation and more rapid onset of action in a rat model than tiotropium bromide
Ag(I)-Catalyzed C–H Carboxylation of Thiophene Derivatives
作者:Mijung Lee、Young Kyu Hwang、Jaesung Kwak
DOI:10.1021/acs.organomet.1c00372
日期:2021.9.27
thiophene derivatives. This new catalytic system involving a phosphine ligand and lithium tert-butoxide enables the direct carboxylation of thiophenes under mild reaction conditions. Experimental studies revealed that the use of tert-butylalkoxide is critical for the exergonic formation of an arylsilver intermediate, and the results were further supported by density functional theory calculations.
CO 2 的利用是一个有吸引力的方面,因为它允许将 CO 2直接转化为有价值的化学品。在这方面,由于杂芳族羧酸无处不在的结构基序,将CO 2直接结合到杂芳族化合物的 C-H 键中是很重要的。在此,我们报告了 Ag 催化的噻吩衍生物的 C-H 羧化。这种涉及膦配体和叔丁醇锂的新催化系统能够在温和的反应条件下直接羧化噻吩。实验研究表明,使用叔丁基醇盐对于芳基银中间体的放能形成至关重要,密度泛函理论计算进一步支持了结果。
Gold catalysed Suzuki-Miyaura coupling of arenediazonium o-benzenedisulfonimides
作者:Margherita Barbero、Stefano Dughera
DOI:10.1016/j.tet.2018.08.018
日期:2018.9
Arenediazonium o-benzenedisulfonimides have been used as efficient electrophilic partners in Au(I) catalysed Suzuki coupling reactions. The synthetic protocol is general, easy and produced either biaryls or heteroaryl arenes in good yields (51 positive examples, average yield 80%). o-Benzenedisulfonimide was recovered at the end of the reactions and was reused to prepare the starting salts for further
Ruthenium-Catalyzed C–H Arylation of Diverse Aryl Carboxylic Acids with Aryl and Heteroaryl Halides
作者:Liangbin Huang、Daniel J. Weix
DOI:10.1021/acs.orglett.6b02862
日期:2016.10.21
ligated to tricyclohexylphosphine or di-tert-butylbipyridine catalyzes the arylation of carboxylic acids with diverse arylhalides (iodide, bromide, and triflate; aryl and heteroaryl). In addition, arylations with 2-iodophenol formed benzochromenones, carboxylate was shown to be a stronger donor than an amide, and the arylation of a pyridine carboxylate was demonstrated. Stoichiometric studies demonstrated