A way to manage the thermal flexibility of ligand candidates for bioassays
摘要:
An original way to manage both stereochemistry and conformational constraints in ligand candidates for bioassays is presented with reference to a group of model NN-tetrasubstituted o-phthalamides and thioamides. The study shows that a scale of thermal flexibility in solution can be envisaged, the divisions of which are represented by compounds sharing quite similar geometrical features. NMR spectroscopy and powder X-ray analysis were used for the physical chemical investigation. An attempt to exploit the conformational instability of a model thioamide in the medium of a bioassay was also performed. (c) 2006 Elsevier Ltd. All rights reserved.
A way to manage the thermal flexibility of ligand candidates for bioassays
摘要:
An original way to manage both stereochemistry and conformational constraints in ligand candidates for bioassays is presented with reference to a group of model NN-tetrasubstituted o-phthalamides and thioamides. The study shows that a scale of thermal flexibility in solution can be envisaged, the divisions of which are represented by compounds sharing quite similar geometrical features. NMR spectroscopy and powder X-ray analysis were used for the physical chemical investigation. An attempt to exploit the conformational instability of a model thioamide in the medium of a bioassay was also performed. (c) 2006 Elsevier Ltd. All rights reserved.
Successful bridging from a peptide to a non peptide antagonist at the human tachykinin NK-2 receptor
作者:Maria Altamura、Franca Canfarini、Rose-Marie Catalioto、Antonio Guidi、Franco Pasqui、Anna R Renzetti、Antonio Triolo、Carlo A Maggi
DOI:10.1016/s0960-894x(02)00539-5
日期:2002.10
Non peptide products have been found to show nanomolar binding and functional affinities at the human tachykinin NK-2 receptor. The new antagonists do not possess stereogenic centers and their thermal behaviour in solution is featured by a peculiar set of conformational stereoisomers. A macroscopic viewpoint is preferentially adopted to rationalize the obtained results. (C) 2002 Elsevier Science Ltd. All rights reserved.