5-cyclopropyl-4-cyclopropylmethoxy-pyridine-2-carboxylic acid 、
2-amino-2-ethyl-N-methyl-butyramide hydrochloride 以isolated (23 mg, 71%) as colorless oil的产率得到5-cyclopropyl-4-cyclopropylmethoxy-pyridine-2-carboxylic acid (1-ethyl-1-methylcarbamoyl-propyl)-amide