Effects of Heterocyclic Aromatic Substituents on Binding Affinities at Two Distinct Sites of Somatostatin Receptors. Correlation with the Electrostatic Potential of the Substituents
作者:Vidya Prasad、Elizabeth T. Birzin、Cheryl T. McVaugh、Rachel D. van Rijn、Susan P. Rohrer、Gary Chicchi、Dennis J. Underwood、Edward R. Thornton、Amos B. Smith、Ralph Hirschmann
DOI:10.1021/jm0205088
日期:2003.5.1
that the replacement of benzene or indole side chains by heterocyclic aromatic rings typified by pyridine and pyrazine not only enhances water solubility and hydrogen bonding capacity as expected, but can also profoundly diminish the ability of the pi-cloud of the aromaticsubstituent to interact with side chains of an aromatic binding pocket such as that for Trp(8) of SRIF-14. Conversely, these calculations