University of Florida Research Foundation, Incorporated

Ray Olsson

Luiz Belardinelli

Peter J Scammells

Stephen Baker

Peter G Milner

Jurg R Pfister

George Frederic Schreiner

J Urg Pfister

Adenosine and xanthine deriviatives, and compositions comprising those compounds, are potent selective agonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias.

Method for using A.sub.1 adenosine receptor agonists

N.sup.6 -(epoxynorborn-2-yl)adenosines are Al adenosine receptor agonists that are useful for controlling atrial fibrillation, ventricular rate in atrial flutter, supraventricular tachyarrhythmia, inhibiting A--V- nodal transmission in supraventricular tachycardia, and for normalizing ventricular rhythm and hemodynamics.

N.sup.6 -(epoxynorborn-2-yl) adenosines as A.sub.1 adenosine receptor

Adenosine and xanthine derivatives, and compositions comprising those compounds, are potent selective agonists and antagonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias.

A1 adenosine receptor agonists and antagonists

Xanthine derivatives, and compositions comprising those compounds, are potent selective antagonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias. The compounds, specifically, are C-8 epoxide derivatives of xanthine having the general formulae of: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different, and can be H or an alkyl group of 1-4 carbons, and n=0-4; and ##STR2## wherein R.sub.1 and R.sub.2 are the same or different, and can be H or an alkyl group of 1-4 carbons, R.sub.3 is either O or (CH.sub.2).sub.1-4, and n=0-4.

Xanthine epoxides as A.sub.1 adenosine receptor agonists and antagonists

Adenosine and xanthine derivatives, and compositions comprising those compounds, are potent selective agonists and antagonists of adenosine receptors. The derivatives and composition are used to treat conditions, including certain cardiac arrhythmias.

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Ray Olsson