Photochemical metal-free aerobic oxidation of thiols to disulfides
作者:Nikoleta Spiliopoulou、Christoforos G. Kokotos
DOI:10.1039/d0gc03818k
日期:——
Thiol oxidation to disulfides is an area of great importance in organic synthesis, both for synthetic and biological purposes. Herein, we report a mild, inexpensive and green photochemical approach for the synthesis of both symmetrical and non-symmetrical disulfides, using metal-free and environmentally friendly conditions. Utilizing phenylglyoxylic acid as the photoinitiator, common household bulbs
Stimuli-responsive release of active anionophore from RGD-peptide-linked proanionophore
作者:Soumya Srimayee、Saumya Ranjan Badajena、Nasim Akhtar、Mrinal Kanti Kar、Subhasis Dey、Purusottam Mohapatra、Debasis Manna
DOI:10.1039/d3cc02451b
日期:——
Integrin-mediated cellular delivery was attempted to optimize practical applications of hydrophobic ionophores.
为了优化疏水性离子载体的实际应用,尝试了由整合素介导的细胞递送。
POLYMERIC NANOGELS WITH DEGRADABLE BACKBONES AND FROM GRAS COMPONENTS, AND COMPOSITIONS AND METHODS THEREOF
申请人:University of Massachusetts
公开号:US20180134845A1
公开(公告)日:2018-05-17
The invention generally relates to novel polymers and polymeric nanogels having biodegradable polymeric backbones, and compositions and methods of preparation and use thereof, for example, as guest-host polymer nano-assemblies and nano-delivery vehicles, which offer utilities in diverse fields including drug delivery, diagnostics and specialty materials.
Unsymmetrical Disulfide Synthesis through Photoredox Catalysis
作者:Dattatraya H. Dethe、Aparna Srivastava、Balu D. Dherange、B. Vijay Kumar
DOI:10.1002/adsc.201800405
日期:2018.8.17
A facile and eco‐friendly visible light‐mediated synthesis of symmetrical and unsymmetrical disulfides using tris[2‐phenylpyridinato‐C2,N]iridium(III) under additive and oxidant free conditions has been disclosed. The developed method is very mild, several functional group tolerant and highly atom economical requiring extremely low amount of catalyst loading (0.5 mol%).
Aryldithioethyloxycarbonyl (Ardec): A New Family of Amine Protecting Groups Removable under Mild Reducing Conditions and Their Applications to Peptide Synthesis
blocks suitable for both solid- and solution-phase peptide synthesis. Model dipeptide(Ardec)s were prepared by using classical peptide couplings followed by standard deprotection protocols. They were used to optimize the conditions for complete thiolytic removal of the Ardec groups both in aqueous and organic media. Phdec and Pydec were found to be cleaved within 15 to 30 min under mild reducing conditions: