Cyclization of 2-amino-4-methyl-3-[2-aryl(hetaryl)-2-oxoethyl]-thiazolium bromides in aqueous medium. A simple synthesis of substituted imidazo[2,1-b]thiazoles
Microwave-assisted and catalyst-free sulfenylation of imidazo[2,1-<i>b</i>]thiazoles with sulfonyl hydrazides in water
作者:Shaohua Wang、Run Luo、Lina Guo、Tianxi Zhu、Xu Chen、Wenjie Liu
DOI:10.1080/10426507.2020.1768537
日期:2020.10.2
Abstract An efficient microwave-assisted and catalyst-free sulfenylation of imidazo[2,1-b]thiazoles with sulfonyl hydrazides has been developed in water. This method is practical and environmental friendly, and can be performed within a short reaction time. The sulfenylation reaction shows high regioselectivity, and excellent functional-group compatibility, giving the desired products in moderate to
Regioselective palladium-catalyzed phosphonation of imidazo[2,1-b]thiazoles with dialkyl phosphites
作者:Wenjie Liu、Shaohua Wang、Huagang Yao、Ziying Li、Yanling Huang、Chunyun Kong
DOI:10.1016/j.tetlet.2015.09.078
日期:2015.10
A novel and facile Pd-catalyzed direct phosphonation of imidazo[2,1-b]thiazoles with dialkyl phosphites has been developed to give the corresponding C-5 phosphonated products in moderate to good yields with high regioselectivity.
Oxone®-mediated direct arylselenylation of imidazo[2,1-b]thiazoles, imidazo[1,2-a]pyridines and 1H-pyrazoles
作者:Ingrid Rodrigues、Angelita M. Barcellos、Andrei L. Belladona、Juliano A. Roehrs、Roberta Cargnelutti、Diego Alves、Gelson Perin、Ricardo F. Schumacher
DOI:10.1016/j.tet.2018.06.046
日期:2018.8
Oxone mediated reaction of imidazo[2,1-b]thiazole, imidazo[1,2-a]pyridine and 1H-pyrazole derivatives with diaryl diselenides is presented here. The methodology represents an efficient and simple protocol for carrying out the selective synthesis of 5-arylselanyl-imidazo[2,1-b]thiazoles, 3-arylselanyl-imidazo[1,2-a]pyridines and 4-arylselanyl-1H-pyrazoles in high yields using a stable, nontoxic and
本文介绍了由氧酮介导的咪唑并[2,1- b ]噻唑,咪唑并[1,2- a ]吡啶和1 H-吡唑衍生物与二芳基二硒化物的反应。该方法表示用于执行5- arylselanyl -咪唑并[2,1-的选择性合成的有效和简单的协议b ]噻唑,3- arylselanyl -咪唑并[1,2一]吡啶和4- arylselanyl-1 ħ -使用稳定,无毒且廉价的氧化剂,可高产率生产吡唑。该反应在60℃下在空气中使用乙腈作为溶剂进行。替代地,超声辐射的使用被提出为用于快速且有效的能量转移的工具,其显着减少了反应时间。
[EN] COMPOUNDS FOR TREATING DUCHENNE MUSCULAR DYSTROPHY<br/>[FR] COMPOSÉS POUR TRAITER LA DYSTROPHIE MUSCULAIRE DE DUCHENNE
申请人:SUMMIT CORP PLC
公开号:WO2009013477A1
公开(公告)日:2009-01-29
Compounds of general formula (I), wherein X1, X2, X3, R1, R2, R3, Y and Z are as defined herein are useful for the treatment and prevention of Duchenne muscular dystrophy, Becker muscular dystrophy and cachexia.
<sup>1</sup>
H and <sup>13</sup>
C assignments of three series bioactive imidazo[2,1-<i>b</i>
]thiazole derivatives
作者:Alexander S. Bunev、Elena V. Sukhonosova、Gennady I. Ostapenko、Andzhela P. Pavlova、Alexander S. Peregudov
DOI:10.1002/mrc.4115
日期:2014.11
systematic studies on their NMR properties have been published. Therefore, 13 compounds with typical substitute group from these three series were selected to carry out a detailed NMR investigation using 1D and 2D NMR experiments including H NMR, C NMR, HMQC and HMBC. Here, we present the detailed H and C NMRassignments of these compounds and further analyze and compare the NMR data of these compounds