(1R,4S)-rel-4-[(2-氨基-6-氯-4-嘧啶基)氨基]-2-环戊烯-1-甲醇

5-amino-3-[(1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl]-2H-triazolo[4,5-d]pyrimidin-7-one

{(1S,4R)-4-[(2,5-二氨基-6-氯-4-嘧啶基)氨基]-2-环戊烯-1-基}甲醇

5-amino-3-[(1S,3R)-3-(hydroxymethyl)cyclopentyl]-2H-triazolo[4,5-d]pyrimidin-7-one