2-(1H-indol-1-yl)propanoic acid 5-Bromo-2-formyl-nicotinic acid ethyl ester 5-Bromo-2-formyl-nicotinicacidethylester 5-methyl-3-(trifluoromethyl)pyridine-2-carbaldehyde Ethyl 5-bromo-2-formylnicotinate ethyl 5-bromo-2-formylpyridine-3-carboxylate ethyl5-bromo-2-formylpyridine-3-carboxylate-97%,,