2-氨基-N-甲基苯磺酰胺, 2-Amino-N-methylbenzenesulfonamide

2-Amino-4-bromobenzaldehyde

2-氨基-4-溴苯甲醛

7H-Pyrrolo[2,3-d]pyrimidine

7H-吡咯并[2,3-d]嘧啶

2-碘-6-氯嘌呤;6-氯-2-碘嘌呤, 6-Chloro-2-iodopurine

2-胺甲基嘧啶-4-甲醛, 2-(Methylamino)pyrimidine-4-carboxaldehyde

5-Hydroxy-2H-1,4-benzoxazin-3(4H)-one

2-Nitropyridine-5-carboxylic acid

2-硝基-5-吡啶羧酸

2-溴-5-苯基-1,3,4-噁二唑, 2-Bromo-5-phenyl-1,3,4-oxadiazole

4-氯吡啶并[3,4-d]嘧啶, 4-Chloropyrido[3,4-d]pyrimidine

5-溴-7H-吡咯并[2,3-d]嘧啶, 5-Bromo-7H-pyrrolo[2,3-d]pyrimidine