The present invention relates to Purine Derivatives; compositions comprising an effective amount of a Purine Derivative; and methods for reducing an animal's core body temperature, protecting an animal's heart against myocardial damage during cardioplegia; or for treating or preventing a cardiovascular...http://www.google.com/patents/US7732424?utm_source=gb-gplus-sharePatent US7732424 - Purine derivatives and methods of use thereof