tert-Butyl 3-(3-hydroxyprop-1-ynyl)-5-methyl-1H-pyrrolo[2,3-b]pyridine-1-carboxylatetert-Butyl 3-(3-hydroxyprop-1-ynyl)-5-methyl-1H-pyrrolo[2,3-b]pyridine-1-carboxylate, tech. gradetert-Butyl 3-(3-hydroxyprop-1-ynyl)-5-methyl-1H-pyrrolo[2,3-b]pyridine-1-carboxylate, tech. grade