CATIONIC CONTRAST AGENTS AND METHODS OF USING THE SAME
申请人:The Trustees of the University of Pennsylvania
公开号:US20160287726A1
公开(公告)日:2016-10-06
Gadolinium complexes for use as contrast agents, and methods for making and using the gadolinium complexes, are described. The contrast agent complexes preferably have a net positive charge, and can electrostatically interact with glycosaminoglycans to improve the delineation of fine tears within cartilage, detection of cartilage degeneration, or assessment of cartilage thickness, morphology, or glycosaminoglycan content via magnetic resonance imaging.
申请人:GlaxoSmithKline Intellectual Property Development Limited
公开号:US10870663B2
公开(公告)日:2020-12-22
The invention relates a compound of the formula:
a pharmaceutically acceptable salt thereof, compositions thereof, and methods of therapeutic treatment using the same.
本发明涉及一种式化合物:
其药学上可接受的盐、其组合物以及使用其进行治疗的方法。
Synthesis of New Substituted <i>N</i>-Sulfonyl Pyrrolidine-2,5-Dione Using Dawson-Type Heteropolyacid as Catalyst
The synthesis of new series of pyrrolidine-2,5-diones having sulfonamide moieties is described. These compounds are synthesized in good yield in three steps (carbamoylation-sulfamoylation, deprotection and condensation) using a catalytic amount of H6P2W18O62 in acetonitrile under refluxing conditions.
Compounds Useful in HIV Therapy
申请人:GlaxoSmithKline Intellectual Property Development Limited
公开号:US20200299309A1
公开(公告)日:2020-09-24
The invention relates a compound of the formula:
a pharmaceutically acceptable salt thereof, compositions thereof, and methods of therapeutic treatment using the same.
N-(Alkylsulfamoyl)aldimines: easily deprotected precursors for diarylmethylamine synthesis
作者:Rosemary H. Crampton、Martin Fox、Simon Woodward
DOI:10.1016/j.tetasy.2013.04.006
日期:2013.5
The sequential reaction of chlorosulfonyl isocyanate with t-BuOH, t-BuNH2 and TFA allows formation of H2NSO2NHBut. Condensation of the latter with Ar1CHO in the presence of Ti(OEt)4 provides the activated imines Ar1CHNSO2NHBut (59–89%). Commercially available boronic acids add to these imines with good stereoselectivity (76–98% ee) using readily available diene ligands. Simple deprotection with 5%