Synthesis of a Heterobifunctional PEG Spacer Terminated with Aminooxy and Bromide Functionality
作者:Christopher Dicus、Michael Nantz
DOI:10.1055/s-2006-950246
日期:2006.10
A simple and efficient synthesis of a novel heterobifunctional polyethylene glycol (PEG) spacer is described. The PEG spacer reagent is terminated with aminooxy and bromide functionality for ease of conjugation to a variety of electrophiles and/or nucleophiles.
An Efficient Buchwald–Hartwig/Reductive Cyclization for the Scaffold Diversification of Halogenated Phenazines: Potent Antibacterial Targeting, Biofilm Eradication, and Prodrug Exploration
作者:Aaron T. Garrison、Yasmeen Abouelhassan、Dimitris Kallifidas、Hao Tan、Young S. Kim、Shouguang Jin、Hendrik Luesch、Robert W. Huigens
DOI:10.1021/acs.jmedchem.7b01903
日期:2018.5.10
Bacterial biofilms are surface-attached communities comprised of nonreplicating persistercells housed within a protective extracellular matrix. Biofilms display tolerance toward conventional antibiotics, occur in ∼80% of infections, and lead to >500000 deaths annually. We recently identified halogenatedphenazine (HP) analogues which demonstrate biofilm-eradicating activities against priority pathogens;
Cyclopropenone-caged Sondheimer diyne (dibenzo[a,e]cyclooctadiyne): a photoactivatable linchpin for efficient SPAAC crosslinking
作者:Dewey A. Sutton、Seok-Ho Yu、Richard Steet、Vladimir V. Popik
DOI:10.1039/c5cc08106h
日期:——
Photo double “click”: Irradiation of bis-cyclopropenone-masked dibenzocyclooctadiynes with UVA or violet light allows for the efficient derivatization of azide-tagged substrates with azide-bearing functional moieties.
The invention relates to iRNA agents, which preferably include a monomer in which the ribose moiety has been replaced by a moiety other than ribose. The inclusion of such a monomer can allow for modulation of a property of the iRNA agent into which it is incorporated, e.g., by using the non-ribose moiety as a point to which a ligand or other entity, e.g., a carbohydrate; or a steroid, e.g., cholesterol, which is optionally substituted with at least one carbohydrate. is directly, or indirectly, tethered. The invention also relates to methods of making and using such modified iRNA agents.
The invention relates to iRNA agents, which preferably include a monomer in which the ribose moiety has been replaced by a moiety other than ribose. The inclusion of such a monomer can allow for modulation of a property of the iRNA agent into which it is incorporated, e.g., by using the non-ribose moiety as a point to which a ligand or other entity, e.g., a carbohydrate; or a steroid, e.g., cholesterol, which is optionally substituted with at least one carbohydrate. is directly, or indirectly, tethered. The invention also relates to methods of making and using such modified iRNA agents.