Chemical exchange saturation transfer contrast agents
申请人:Caravan D. Peter
公开号:US20060275217A1
公开(公告)日:2006-12-07
Chelating ligands and metal chelates useful as CEST MR contrast agents are disclosed. The CEST agents can be used to evaluate blood volume changes in the heart and brain.
High-Throughput Screening and Hit Validation of Extracellular-Related Kinase 5 (ERK5) Inhibitors
作者:Stephanie M. Myers、Ruth H. Bawn、Louise C. Bisset、Timothy J. Blackburn、Betty Cottyn、Lauren Molyneux、Ai-Ching Wong、Celine Cano、William Clegg、Ross. W. Harrington、Hing Leung、Laurent Rigoreau、Sandrine Vidot、Bernard T. Golding、Roger J. Griffin、Tim Hammonds、David R. Newell、Ian R. Hardcastle
DOI:10.1021/acscombsci.5b00155
日期:2016.8.8
The extracellular-related kinase 5 (ERK5) is a promising target for cancer therapy. A high-throughput screen was developed for ERK5, based on the IMAP FP progressive binding system, and used to identify hits from a library of 57 617 compounds. Four distinct chemical series were evident within the screening hits. Resynthesis and reassay of the hits demonstrated that one series did not return active
Lanthanide complexes of two tris(amide) derivatives of PCTA were synthesized and characterized. The relaxometric and luminescence properties of their lanthanide complexes were investigated as bimodalmagneticresonance (MR) and opticalimagingagents. Luminescence studies show that one of the TbIII complexes dimerizes in solution at low millimolar concentrations, whereas the other may have a higher
α-hydroxyl acids are of great importance in chemicalsynthesis. Current methods for recognizing their chirality by 1 H NMR are limited by their small chemical shift differences and intrinsic solubility problem in organic solvents. Herein, we developed three YbDO3A(ala)3 derivatives to recognize four different commercially available chiral α-hydroxyl acids in aqueous solution through 1 H NMR and chemical
手性α-羟基酸在化学合成中非常重要。当前通过1 H NMR识别它们的手性的方法受到其小的化学位移差异和在有机溶剂中的固有溶解度问题的限制。在这里,我们开发了三种YbDO3A(ala)3衍生物,以通过1 H NMR和化学交换饱和转移(CEST)光谱识别水溶液中的四种不同的手性α-羟基酸。通过质子和CEST NMR观察到的手性α-羟基酸之间的位移差分别为15-40和20-40ppm。我们的工作首次证明,即使是cycln侧臂链上的一个手性中心,也可以为其他两个非手性侧链旋转至首选位置奠定基础。这归因于结构的较低能量状态。
Process for the production of metal-complex carboxylic acid amides
申请人:Schering Aktiengesellschaft
公开号:US06045776A1
公开(公告)日:2000-04-04
The invention relates to a process for the production of metal-complex carboxylic acid amides, characterized in that a metal-complex carboxylic acid mixture that consists of the metal-complex carboxylic acid and at least one solubilizing substance in dimethyl sulfoxide (DMSO) is pretreated with a dehydrating reagent, optionally with the addition of a coupling adjuvant, and is then reacted with an amine of general formula I A(NH.sub.2).sub.n (I), in which A stands for the radical of a natural or synthetic amine, and n stands for numbers 1 to 100.