"Ethyl 3-bromo-1H-pyrazolo[4,3-c]pyridine-6-carboxylate "
"Ethyl 3-bromo-1H-pyrazolo[4,3-c]pyridine-6-carboxylate "
"Ethyl 3-bromo-1H-pyrazolo[4,3-c]pyridine-6-carboxylate "
Methyl 3-bromo-2H-pyrazolo[4,3-c]pyridine-6-carboxylate
"Ethyl 3-bromo-1H-pyrazolo[4,3-c]pyridine-6-carboxylate"