tert-butyl 1-(4-(2-(1H-pyrazol-4-yl)-8-(pyridin-2-yl)-9H-purin-9-yl)phenyl)cyclobutylcarbamate

1-(4-(2-(1H-pyrazol-4-yl)-8-(pyridin-2-yl)-9H-purin-9-yl)phenyl)cyclobutanamine

tert-butyl 1-(4-(2-(1-(2-hydroxyethyl)-1H-pyrazol-4-yl)-8-(pyridine-2-yl)-9H-purin-9-yl)phenyl)cyclobutylcarbamate

2-(4-(9-(4-(1-aminocyclobutyl)phenyl)-8-(pyridin-2-yl)-9H-purin-2-yl)-1H-pyrazol-1-yl)ethanol

(1-{4-[2-(3-hydroxy-pyrrolidin-1-yl)-8-pyridin-2-yl-purin-9-yl]-phenyl}-cyclobutyl)-carbamic acid tert-butyl ester