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ethyl 1H-pyrrolo[2,3-b]pyridine-5-carboxylate 1H-PYRROLO[2,3-B]PYRIDINE-6-CARBOXYLIC ACID 7-Azaindole-4-carboxylic acid 3-IODO-PYRROLO[2,3-B]PYRIDINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER 3-IODO-1H-PYRROLO[2,3-B]PYRIDINE-5-CARBOXYLICACIDMETHYLESTER 1H-Pyrrolo[2,3-b]pyridine-5-carboxylic acid, 6-methyl- 1H-PYRROLO[2,3-B]PYRIDINE-5-CARBOXYLIC ACID METHYL ESTER