<i>N</i>,<i>N′</i>-Diarylsquaramides: General, High-Yielding Synthesis and Applications in Colorimetric Anion Sensing
作者:Ali Rostami、Alexis Colin、Xiao Yu Li、Michael G. Chudzinski、Alan J. Lough、Mark S. Taylor
DOI:10.1021/jo100104g
日期:2010.6.18
Zinc trilluoromethanesullonate promotes efficient condensations of anilines with squarate esters, providing access to symmetrical and unsymmetrical squaramides in high yields from readily available starting materials. Efficient access to electron-deficient diaryl squaramides has enabled a systematic investigation of the colorimetric anion-sensing behavior of a p-nitro-substituted squaramide. Its behavior differs in dramatic and unexpected ways from that of structurally similar p-nitroaniline-based ureas, an effect that highlights the remarkable differences in acidity between the squaramide and urea functional groups. Computational studies illustrating the enhanced hydrogen bond donor ability and acidity of squaramides in comparison to ureas are presented.
COMPOUNDS FOR THE TREATMENT OF INFLAMMATORY DISORDERS
申请人:Kozlowski Joseph A.
公开号:US20120010181A1
公开(公告)日:2012-01-12
This invention relates to compounds of the Formula (I): (Chemical formula should be inserted here as it appears on abstract in paper form) (I) or a pharmaceutically acceptable salt, solvate or isomer thereof, which can be useful for the treatment of diseases or conditions mediated by MMPs, ADAMs, TACE, aggrecanase, TNF—or combinations thereof.
US8541572B2
申请人:——
公开号:US8541572B2
公开(公告)日:2013-09-24
Anticancer efficacy triggered by synergistically modulating the homeostasis of anions and iron: Design, synthesis and biological evaluation of dual-functional squaramide-hydroxamic acid conjugates