2-氯-4-甲氧基-1H-吡咯并[2,3-d]嘧啶

7-(2-脱氧-beta-D-赤式-呋喃戊糖基)-1H-吡咯并[2,3-d]嘧啶-2,4(3H,7H)-二酮

N-(4,5-dichloro-7H-pyrrolo[2,3-d]pyrimidin-2-yl)-2,2,2-trifluoroacetamide