(2R,3R,4S,5R)-2-[6-amino-2-[[(2S)-1-hydroxy-3-phenylpropan-2-yl]amino]purin-9-yl]-5-(2-ethyltetrazol-5-yl)oxolane-3,4-diol
(2R,3R,4S,5R)-2-[6-amino-2-[[(1S)-1-(hydroxymethyl)-2-phenyl-ethyl]amino]purin-9-yl]-5-(2-ethyltetrazol-5-yl)tetrahydrofuran-3,4-diol
(2R,3R,4S,5R)-2-[6-amino-2-[[(1S)-1-(hydroxymethyl)-2-phenylethyl]amino]-9-purinyl]-5-(2-ethyl-5-tetrazolyl)tetrahydrofuran-3,4-diol
(2R,3R,4S,5R)-2-[6-amino-2-[[(1S)-1-(benzyl)-2-hydroxy-ethyl]amino]purin-9-yl]-5-(2-ethyltetrazol-5-yl)tetrahydrofuran-3,4-diol
(2R,3R,4S,5R)-2-[6-amino-2-[[(2S)-1-hydroxy-3-phenyl-propan-2-yl]amino]purin-9-yl]-5-(2-ethyl-1,2,3,4-tetrazol-5-yl)oxolane-3,4-diol