Design, synthesis and RNase A inhibition activity of catechin and epicatechin and nucleobase chimeric molecules
摘要:
Several novel catechin/epicatechin and nucleobase chimeric molecules 1-6 have been synthesized via azide-alkyne click chemistry. The structures of these hybrids have been confirmed by NMR and mass spectroscopic data. The synthesized molecules were tested for their RNase A inhibition activities. Gel-based assays showed inhibition in micromolar concentrations. The extent of inhibition was found to be dependent upon the nature of base as well as the configuration at C-3 position of catechin. (C) 2008 Elsevier Ltd. All rights reserved.
Design, synthesis and RNase A inhibition activity of catechin and epicatechin and nucleobase chimeric molecules
摘要:
Several novel catechin/epicatechin and nucleobase chimeric molecules 1-6 have been synthesized via azide-alkyne click chemistry. The structures of these hybrids have been confirmed by NMR and mass spectroscopic data. The synthesized molecules were tested for their RNase A inhibition activities. Gel-based assays showed inhibition in micromolar concentrations. The extent of inhibition was found to be dependent upon the nature of base as well as the configuration at C-3 position of catechin. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of (3,4-dimethoxyphenoxy)alkylamino acetamides as orexin-2 receptor antagonists
作者:Andrew G. Cole、Ilana L. Stroke、Lan-Ying Qin、Zahid Hussain、Srilatha Simhadri、Marc-Raleigh Brescia、Frank S. Waksmunski、Barbara Strohl、John E. Tellew、John P. Williams、John Saunders、Kenneth C. Appell、Ian Henderson、Maria L. Webb
DOI:10.1016/j.bmcl.2008.09.038
日期:2008.10
The discovery and synthesis of a series of (dimethoxyphenoxy)alkylamino acetamides as orexin-2 receptor antagonists from a small-molecule combinatorial library using a high-throughput calcium mobilization functional assay (HEK293-human OX2-R cell line) is described. Active compounds show a good correlation between high-throughput single concentration screening data and measured IC(50)s. Specific examples
A facile synthesis of novel 2-amino-6-arylmethyl-7-carboxamido-7,8-dihydropyrimido[5,4-f][1,4]thiazepin-5-ones
作者:Lan-Ying Qin、Andrew G. Cole、Axel Metzger、Marc-Raleigh Brescia、Kurt W. Saionz、Joan J. Zhang、Pascal Rigollier、James R. Wareing、Hubert Gstach、Juerg Zimmermann、Roland E. Dolle、John J. Baldwin、Ian Henderson
DOI:10.1016/j.tetlet.2010.06.070
日期:2010.8
A facile synthesis of novel 2-amino-6-arylmethyl-7-carboxamido-7,8-dihydropyrimido[5,44][1,4]thiazepin-5-ones is described. The synthesis was developed on solid phase and was applied to provide a series of analogs in good yield. The key reactions are acylation of a cysteine derivative with 2,4-dichloropyrimidine-5-carbonyl chloride followed by cyclization to generate a 6-arylmethyl-7-carboxamido-2-chloro-7,8-dihydropyrimido[5,4-f][1,4]thiazepin-5-one, which is further derivatized with an amine to give the desired 2-amino-6-arylmethyl-7-carboxamido-7,8-dihydropyrimido[5,4-f][1,4]thiazepin-5-one. (C) 2010 Elsevier Ltd. All rights reserved.