4-nitro-1-(β-D-ribofuranosyl)-1H-indazole

2-(hydroxymethyl)-5-(4-nitroindazol-2-yl)oxolane-3,4-diol

2-(5,7-diaminotriazolo[4,5-d]pyrimidin-3-yl)-5-(hydroxymethyl)oxolane-3,4-diol

4-amino-1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]thieno[2,3-d]pyrimidin-2-one

5-(甲基磺酰基)-3-呋喃戊糖基-3H-[1,2,3]三唑并[4,5-d]嘧啶-7-胺