Copper Iminopyrrolidinates: A Study of Thermal and Surface Chemistry
摘要:
Several copper(I) iminopyrrolidinates have been evaluated by thermogravimetric analysis (TGA) and solution based H-1 NMR studies to determine their thermal stability and decomposition mechanisms. Iminopyrrolidinates were used as a ligand for copper(I) to block previously identified decomposition routes of carbodiimide deinsertion and beta-hydrogen abstraction. The compounds copper(I) isopropyl-iminopyrrolidinate (1) and copper(I) tert-butyl-iminopyrrolidinate (2) were synthesized for this study, and compared to the previously reported copper(I) tert-butyl-imino-2,2-dimethylpyrrolidinate (3) and the copper(I) guanidinate [Me2NC((PrN)-Pr-1)(2)Cu](2) (4). Compounds 1 and 2 were found to be volatile yet susceptible to decomposition during TGA. At 165 degrees C in C6D6, they had half-lives of 181.7 h and 23.7 h, respectively. The main thermolysis product of 1 and 2 was their respective protonated iminopyrrolidine ligand. beta-Hydrogen abstraction was proposed for the mechanism of thermal decomposition. Since compound 3 showed no thermolysis at 165 degrees C, it was further studied by chemisorption on high surface area silica. It was found to eliminate an isobutene upon chemisoption at 275 degrees C. Annealing the sample at 350 degrees C showed further evidence of the decomposition of the surface species, likely eliminating ethene, and producing a surface bound methylene diamine.
Disclosed herein is a compound having a structure
compositions, methods, and medicaments related thereto are also disclosed.
本文披露了一种具有结构的化合物,同时还披露了相关的组成、方法和药物。
ANTI-ALPHAVBETA1 INTEGRIN INHIBITORS AND METHODS OF USE
申请人:The Regents of the University of California
公开号:US20160264566A1
公开(公告)日:2016-09-15
Provided herein, inter alia, are methods and compositions for inhibiting αvβ1 integrin and for treating fibrosis.
本文提供了抑制αvβ1整合素和治疗纤维化的方法和组合物等内容。
Uniform, Functionalized, Cross-Linked Nanostructures for Monitoring pH
申请人:Wooley Karen L.
公开号:US20130210156A1
公开(公告)日:2013-08-15
Described herein are optical agents, including compositions, preparations and formulations, for monitoring the pH of a fluid. Optical agents described herein include photonic nanostructures and nanoassemblies including supramolecular structures, such as shell cross-linked micelles, that incorporate at least one linking group comprising one or more photoactive moieties that provide functionality as exogenous agents for a range of pH monitoring applications. Optical agents described herein comprise supramolecular structures having linking groups imparting useful optical and structural functionality. In an embodiment, for example, the presence of linking groups function to covalently cross link polymer components to provide a cross-linked shell stabilized supramolecular structure, and also impart useful optical functionality, for example by functioning as a fluorophore.
CLONIDINE AND/OR CLONIDINE DERIVATIVES FOR USE IN THE PREVENTION OF SKIN INJURY RESULTING FROM RADIOTHERAPY
申请人:MONOPAR THERAPEUTICS INC.
公开号:US20180098967A1
公开(公告)日:2018-04-12
The present invention pertains to a pharmaceutical composition comprising a pharmaceutically acceptable carrier and Clonidine and/or Clonidine derivatives as a sole active ingredient for use in the prevention of skin injury resulting from radiotherapy by transmucocal administration.