Disclosed is a compound selected from (2R,3R,4R,5R)-5-[6-amino-2-(cyclopentylmethoxy)-9H-purin-9-yl]-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol, (2R,3R,4R,5R)-5-{ 6-amino-2-[(2,2,3,3-tetrafluorocyclobutyl)oxy]-9H-purin-9-yl} -2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol, (2R,3R,4 R,5R)-5-[6-amino-2-(2,5-difluorophenoxy)-9H-purin-9-yl]-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol, (2R,3R,4R,5R)-5-[6-amino-2-(3,4-difluorophenoxy)-9H-purin-9-yl]-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol (2R,3R,4R,5R)-5-[6-amino-2-[4-chloro-3-(trifluoromethyl)phenoxy]-9H-purin-9-yl]-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol,(2R,3R,4R,5R)-5-(6-amino-2-{ [(1S)-1-methylpropyI]amino} -9H-purin-9-yl)-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol and (2R,3R,4R,5R)-5-[6-amino-2-(cyclohexylamino)-9H-purin-9-yl]-2-(hydroxymethyl)-4-methoxytetrahydrofuran-3-ol for treating pain and inflammation.