1H-Imidazo(4,5-c)pyridin-4-amine, 1-(5-S-(2-methylpropyl)-5-thio-beta-D-ribofuranosyl)- 3-Deaza-siba 5'-Deoxy-5'-(isobutylthio)-3-deazaadenosine 67377-76-8 S-Isobutyryl-3-deaza-adenosine