4'-[2-(ethylamino)ethoxy]-3,4,5,6-tetrahydro-2H-pyran-4-carboxanilide 、
ethanol hydrochloride 在
盐酸 、
乙醚 作用下,
以
甲醇 为溶剂,
以to obtain 4′-[2-(ethylamino)ethoxy]-3,4,5,6-tetrahydro-2H-pyran-4-carboxanilide hydrochloride (0.80 g) as white crystal的产率得到4'-[2-(ethylamino)ethoxy]-3,4,5,6-tetrahydro-2H-pyran-4-carboxanilide hydrochloride