lambda > 300 nm, the nanotubes in the solidstate and suspension both underwent dimerization of the coumarin pendants, affording covalently stitched nanotubes, which were hardly soluble in CHCl3, a good solvent of 1. In contrast, a thin film cast from a homogeneous solution of 1 was intact to photoirradiation. Owing to the reversible nature of the photochemical stitching, both negative and positive
PHOTOCROSSLINKED HYALURONIC ACID DERIVATIVES, AND THE PREPARATION PROCESS AND USE THEREOF
申请人:FIDIA FARMACEUTICI S.P.A.
公开号:US20150367027A1
公开(公告)日:2015-12-24
Disclosed are photocrosslinked hyaluronic acid (HA) derivatives consisting of HA, a bifunctional polyethylene glycol (PEG) spacer which is triethylene glycol, and a photoreactive compound selected from a coumarin derivative and propiophenone.
Synthesis of ciprofloxacin dimers for evaluation of bacterial permeability in atypical chemical space
作者:Audrey G. Ross、Bret M. Benton、Donovan Chin、Gianfranco De Pascale、John Fuller、Jennifer A. Leeds、Folkert Reck、Daryl L. Richie、Jason Vo、Matthew J. LaMarche
DOI:10.1016/j.bmcl.2015.07.010
日期:2015.9
We describe the synthesis and evaluation of a library of variably-linked ciprofloxacin dimers. These structures unify and expand on the use of fluoroquinolones as probes throughout the antibiotic literature. A dimeric analog (19) showed enhanced inhibition of its intracellular target (DNA gyrase), and translation to antibacterial activity in whole cells was demonstrated. Overall, cell permeation was governed by physicochemical properties and bacterial type. A principal component analysis demonstrated that the dimers occupy a unique and privileged region of chemical space most similar to the macrolide class of antibiotics. (C) 2015 Elsevier Ltd. All rights reserved.
US9889226B2
申请人:——
公开号:US9889226B2
公开(公告)日:2018-02-13
[EN] PHOTOCROSSLINKED HYALURONIC ACID DERIVATIVES, AND THE PREPARATION PROCESS AND USE THEREOF<br/>[FR] DÉRIVÉS D'ACIDE HYALURONIQUE PHOTORÉTICULÉS ET PROCÉDÉ DE PRÉPARATION ET UTILISATION DE CEUX-CI
申请人:FIDIA FARMACEUTICI
公开号:WO2014122580A1
公开(公告)日:2014-08-14
Disclosed are photocrosslinked hyaluronic acid (HA) derivatives consisting of HA, a bifunctional polyethylene glycol (PEG) spacer which is triethylene glycol, and a photoreactive compound selected from a coumarin derivative and propiophenone.