-C-Methylguanosine

2'-C-Methylguanosine

2'-C-beta-Methylguanosine

2-AMino-9-((2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxyMethyl)-3-Methyltetrahydrofuran-2-yl)-1H-purin-6(9H)-one