2,6-Dimethyl-4-hydroxy-furano[2,3-c]pyridine 、
6-methyl-4,5,6,7-tetrahydrofuro<2,3-c>pyridine-4-ol hydrochloride 、 2-Ethyl-4-hydroxy-6-methyl-furano[2,3-c]pyridine 以176°-178° C.) were also obtained in this way的产率得到6-methyl-4,5,6,7-tetrahydrofuro<2,3-c>pyridine-4-ol