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2013135582-O-[2-(methylamino)-2-oxoethyl]-guanosine

201313559N2-iso-Butyroyl-3-O-methylguanosine

201313560(2R)-2-Deoxy-2-fluoro-2-Methyl-6-O-Methyl-guanosine

2013135612-O-(4-benzoylbenzoyl)guanosine cyclic 3,5-monophosphate

2013135622,3-O-(Methoxymethylene)-6-thio-guanosine

201313563N-(deoxyguanosin-8-yl)-2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine

2013135642,3-Di-O-acetyl-8-benzyloxy-3-deoxy guanosine

2013135659-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-(2-methylpropylamino)-1H-purin-6-one

2013135666-(alpha-D-2-Deoxyribo furanosyl)-3,4-dihydro-8H-pyrimido[4,5-c][1,2]oxazin-7-one

201313567N-[1-[(2R,4S,5R)-5-[[tert-butyl(dimethyl)silyl]oxymethyl]-4-hydroxyoxolan-2-yl]-2-oxopyrimidin-4-yl]b

2013135684-(ethylamino)-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one