7472-18-6
6-methyl-1,5-dihydrofuro[3,4-c]pyridine-3,4-dione
→
~67%
63644-90-6
4-chloro-6-methyl-1H-furo[3,4-c]pyridin-3-one
17718-67-1
4-(ethoxymethyl)-6-methyl-2-oxo-1H-pyridine-3-carbonitrile