The development and preparation of the 2,4-dimethoxybenzyl arylhydrazine (DMBAH) “latent” safety-catch linker: solid phase synthesis of ketopiperazines
Expedient synthesis of benzene tricarboxamide macrocycles derived from p-aminobenzoic acid
作者:Fred Campbell、Colin A. Kilner、Andrew J. Wilson
DOI:10.1016/j.tetlet.2009.12.137
日期:2010.3
The synthesis of macrocycles functionalized at the periphery in a regiospecific fashion is considered challenging. This Letter describes a six-step synthesis of N-alkylated benzene tricarboxamide macrocycles derived from p-aminobenzoic acid via the iterative coupling of Fmoc-protected monomers and cyclization of the resultant linear foldamers.
Provided are: useful novel compounds that exhibit antibacterial activity based on their actions for inhibiting GyrB of DNA gyrase and ParE of topoisomerase IV; and 2(1H)-quinolinone derivatives represented by formula [1]:
or pharmaceutically acceptable salts thereof.
Facile Synthesis of a High Molecular Weight Amphiphilic Aramid–ROMP Block Copolymer
作者:Michael Badoux、Susanne Drechsler、Subhajit Pal、Andreas F. M. Kilbinger
DOI:10.1021/acs.macromol.7b01989
日期:2017.12.12
report the facile synthesis of an amphiphilic rod–coil blockcopolymer obtained by the coupling of an amine-terminated poly(dimethylpropylamine norbornene imide) (PDMAPNI) and a pentafluorophenol ester-terminated poly(dimethoxybenzyl p-aminobenzoate) (PAram). Postpolymerization amide N-deprotection of the blockcopolymer yielded a strongly aggregating water-soluble rod–coil copolymer. Transmission electron
A latent aryl hydrazine ‘safety-catch’ linker compatible with N-alkylation
作者:Frédéric Berst、Andrew B Holmes、Mark Ladlow、Peter John Murray
DOI:10.1016/s0040-4039(00)01108-4
日期:2000.8
The preparation and use of a latent aryl hydrazine 'safety-catch' linker for solid-phase chemistry, which is compatible with N-alkylation, is reported. Its use is exemplified by the preparation of mono-ketopiperazines, whereby release from resin is effected via an intramolecular cyclitive cleavage strategy. (C) 2000 Elsevier Science Ltd, All rights reserved.