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- W2058936197 abstract "Intracoronary adenosine infusions in conscious dogs produced half-maximal coronary vasodilation at 0.57 +/- 0.18 (SD) microns and at 1.01 +/- 0.25 microns in open-chest dogs. In both preparations, adenosine at concentrations in the range found in cardiac muscle by direct analysis produced coronary vasodilation equal to that attained during a maximum reactive hyperemic response. The quantitative structure-activity relationship technique was applied to data on the coronary vasoactivity of 68 adenosine analogs to identify the chemical features of this molecule that determine its vasoactivity. These are: (1) the size of the purine base; (2) the inductive effect of C-2 substituent; (3) the electron-withdrawing effect of the C-6 substituent; (4) the glycosylic torsion angle; (5) the ability of the C-2' and C-3' hydroxyls to participate in hydrogen bonding; (7) the absence of sterically hindering groups in the vicinity of C-2' and, more importantly, C-3'; and (8) the inductive effect of the C-5' substituent. The hydrophobicity of these analogs did not correlate with vasoactivity, suggesting that the hydrophilicity of the ribose moiety overshadows any hydrophobic influence of the very weakly aromatic purine base." @default.
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- W2058936197 date "1979-10-01" @default.
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- W2058936197 title "Coronary vasoactivity of adenosine in the conscious dog." @default.
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- W2058936197 doi "https://doi.org/10.1161/01.res.45.4.468" @default.
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