tert-Butyl-3-(trifluoromethyl)-1H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine-5-carboxylatetert-Butyl-3-(trifluoromethyl)-1H,4H,5H,6H,7H-pyrazolo[4,3-c]pyridine-5-carboxylate