(1R,2S,3R,5S)-3-[2-chloro-6-[(1S,2S)-2-hydroxycyclopentylamino]-purin-9-yl]-5-(4-hydroxymethyl-pyrazol-1-yl)-cyclopentane-1,2-diol 、 (1S,2R,3S,5R)-3-amino-5-(6-cyclopentylamino-purin-9-yl)-cyclopentane-1,2-diol hydrochloride 生成 (1R,2S,3R,5S)-3-[6-[(1S,2S)-2-hydroxycyclopentylamino]-purin-9-yl]-5-(4-hydroxymethyl-pyrazol-1-yl)-cyclopentane-1,2-diol