Cucurbit[6]uril as a potential catalyst for the acidic decomposition of azidoaminoalkanes
摘要:
Five azidoalkyl-1-amines and p-azidoaniline have been synthesized and complexed with cucurbit[6]uril in acidic solutions. Isothermal titration calorimetry has been employed to determine the association constant K and the enthalpy of complex formation Delta H of the azidoalkyl- and azidoarylamines. 4-Azidobutyl-1-amine forms by far the most stable complex. Cucurbit[6]uril significantly catalyzes the decomposition of the azidoalkyl- and azidoarylamines studied. (C) 2012 Elsevier Ltd. All rights reserved.
Development of a method for the parallel synthesis and purification of N-substituted pantothenamides, known inhibitors of coenzyme A biosynthesis and utilization
作者:Marianne van Wyk、Erick Strauss
DOI:10.1039/b811086g
日期:——
analogues which have been shown to act as inhibitors of coenzyme A biosynthesis and utilization, especially by blocking fatty acid metabolism through formation of inactive acyl carrier proteins. To fully explore the chemical diversity and inhibitory potential of these analogues we have developed a simple method for the parallel synthesis and purification of any number of pantothenamides from a single precursor
High-throughput synthesis of azide libraries suitable for direct “click” chemistry and in situ screening
作者:Rajavel Srinivasan、Lay Pheng Tan、Hao Wu、Peng-Yu Yang、Karunakaran A. Kalesh、Shao Q. Yao
DOI:10.1039/b902338k
日期:——
building blocks (key components in clickchemistry). We report herein a highly robust and efficient strategy for high-throughput synthesis of a 325-member azide library. The method is highlighted by its simplicity and product purity. The utility of the library is demonstrated with the subsequent “click” synthesis of the corresponding bidentate inhibitors against PTP1B.
[EN] MACROCYCLIC PEPTIDES USEFUL AS IMMUNOMODULATORS<br/>[FR] PEPTIDES MACROCYCLIQUES UTILES COMME IMMUNOMOLDULATEURS
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2016077518A1
公开(公告)日:2016-05-19
The present disclosure provides compounds which are immunomodulators and thus are useful for the amelioration of various diseases, including cancer and infectious diseases.
本公开提供了一些免疫调节剂化合物,因此对于改善各种疾病,包括癌症和传染病,具有用处。
One-pot preparation of coenzyme A analogues via an improved chemo-enzymatic synthesis of pre-CoA thioester synthons
作者:Marianne van Wyk、Erick Strauss
DOI:10.1039/b613527g
日期:——
Coenzyme A analogues are synthesized in a one-pot preparation by biotransformation of pantothenate thioesters through the simultaneous use of three CoA biosynthetic enzymes, followed by aminolysis.
Propargyl functionalized diazenes 1 were prepared by two different approaches and were examined as alkyne click components in copper-catalyzed azide–alkyne cycloadditions (CuAAC) with 2-(azidomethyl)pyridine 5a and four α-azido-ω-aminoalkanes C2–C5 (5b–e). Whereas the reactions with azidoalkylamines 5b–e reached completion with copper(II) sulfate without the need of reducing agent typically in no more