Prodrug and covalent linker strategies for the solubilization of dual-Action antioxidants/Iron chelators
摘要:
Water soluble prodrugs of hybrid free radical scavenger/iron chelating molecules, based on 3,5-disubstituted-4-hydroxyphenyl derivatives and 3-hydroxy-2-methyl-4(1H)-pyridinone (deferiprone), have been prepared. Related hybrid molecules containing a covalent poly(ethylene)glycol or an amine linker were also synthesized. (C) 2002 Elsevier Science Ltd. All rights reserved.
Selective Inhibitors of Human Neuraminidase 1 (NEU1)
作者:Tianlin Guo、Rachel Héon-Roberts、Chunxia Zou、Ruixiang Zheng、Alexey V. Pshezhetsky、Christopher W. Cairo
DOI:10.1021/acs.jmedchem.8b01411
日期:2018.12.27
Inhibitors of human neuraminidase enzymes (NEU) are recognized as important tools for the study of the biological functions of NEU and will be potent tools for elucidating the role of these enzymes in regulating the repertoire of cellular glycans. Here we report the discovery of selective inhibitors of the human neuraminidase 1 (NEU1) and neuraminidase 2 (NEU2) enzymes with exceptional potency. A library
Primary arylamine-based tyrosine-targeted protein modification
作者:Lin Wang、Valentinas Gruzdys、Nan Pang、Fanhao Meng、Xue-Long Sun
DOI:10.1039/c4ra05413j
日期:——
mass spectrometry. In comparison, three-component Mannich type reaction affords much higher reaction yields than diazoniumcouplingreaction in all modifications. Further, this study confirmed the importance of the electron withdrawing substituent on the para position of the phenyl ring for the tyrosine-targeted diazoniumcouplingreaction.
The invention is concerned with N-terminally pegylated polypeptides capable of binding to the prolactin receptor. Such polypeptides may for instance be N-terminally pegylated antagonists of the prolactin receptor, such as for instance prolactin variants.
Avidin-biotin affinity columns. General methods for attaching biotin to peptides and proteins
作者:Klaus Hofmann、Frances M. Finn、Yoshiaki Kiso
DOI:10.1021/ja00479a048
日期:1978.5
General Method for the Preparation of Active Esters by Palladium-Catalyzed Alkoxycarbonylation of Aryl Bromides
作者:Angelina M. de Almeida、Thomas L. Andersen、Anders T. Lindhardt、Mauro V. de Almeida、Troels Skrydstrup
DOI:10.1021/jo5025464
日期:2015.2.6
A useful method was developed for the synthesis of active esters by palladium-catalyzed alkoxycarbonylation of (hetero)aromatic bromides. The protocol was general for a range of oxygen nucleophiles including N-hydroxysuccinimide (NHS), pentafluorophenol (PFP), hexafluoroisopropyl alcohol (HFP), 4-nitrophenol, and N-hydroxyphthalimide. A high functional group tolerance was displayed, and several active esters were prepared with good to excellent isolated yields. The protocol was extended to access an important synthetic precursor to the HIV-protease inhibitor, saquinavir, by formation of an NHS ester followed by acyl substitution.