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          2-氨基-7h-吡咯并[2,3-d]嘧啶 | 
          93366-88-2 | 
         
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          7H-吡咯并[2,3-D]嘧啶 | 
          271-70-5 | 
         
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          2,4-二羟基吡咯[2,3-d]嘧啶 | 
          39929-79-8 | 
         
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          2-巯基-4-氨基-7H-吡咯[2,3-d]嘧啶 | 
          98198-24-4 | 
         
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          7H-吡咯并[2,3-d]嘧啶-2,4-二胺 | 
          18620-92-3 | 
         
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          4-氨基-7H-吡咯[2,3-d]嘧啶 | 
          1500-85-2 | 
         
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          6-氯-7-脱氮鸟嘌呤 | 
          84955-31-7 | 
         
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          4-氯-7H-吡咯[2,3-d]嘧啶 | 
          3680-69-1 | 
         
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          2-氨基-4-羟基吡咯并[2,3-d]嘧啶 | 
          7355-55-7 | 
         
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          4-羟基吡咯并[2,3-d]嘧啶 | 
          3680-71-5 | 
         
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          N-[6,9-二氢-9-[(2R,6S)-6-(羟基甲基)-2-吗啉]-6-氧代-1H-嘌呤-2-基]-2-甲基-丙酰胺 | 
          956139-23-4 | 
         
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          1-[(2R,6S)-6-(羟基甲基)-2-吗啉]-2,4(1H,3H)-嘧啶二酮 | 
          109205-43-8 | 
         
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          (2R,3S,5R)-5-(4-氨基-7H-吡咯[2,3-D]嘧啶-7-基-2-(羟甲基)四氢呋喃-3-醇 | 
          60129-59-1 | 
         
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          6-氯-7-氮杂嘌呤-D-核糖甙 | 
          16754-80-4 | 
         
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          1-(2-O,4-C-甲桥-beta-D-呋喃核糖基)尿嘧啶核苷 | 
          200435-92-3 | 
                
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