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Pyrazolo[1,5-a]pyridine METHYL PYRAZOLO[1,5-A]PYRIDINE-3-CARBOXYLATE PYRAZOLO[1,5-A]PYRIDINE-2-CARBOHYDRAZIDE PYRAZOLO[1,5-A]PYRIDINE-2-CARBOXYLIC ACID ETHYL ESTER Pyrazolo[1,5-a]pyridin-3-carbaldehyde 3-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)PYRAZOLO[1,5-A]PYRIDINE Pyrazolo[1,5-a]pyridine-4-carboxylic acid PYRAZOLO[1,5-A]PYRIMIDINE-3-CARBOXYLIC ACID Pyrazolo[1,5-a]pyrimidine-3-boronic acid pinacol ester PYRAZOLO[1,5-A]PYRIDINE-7-CARBALDEHYDE