3-acetyl-1-allyl-4-hydroxy-6-methyl-1H-pyridin-2-one 、
乙醇 以0.23 g of 1-allyl-3-[3-[3-(cyanomethoxy)phenyl]-1-oxo-2-propenyl]-4-hydroxy-6-methyl-2(1H)-pyridinone [Compound No. (1c)] was obtained as a yellow crystal的产率得到1-allyl-3-[3-[3-(cyanomethoxy)phenyl]-1-oxo-2-propenyl]-4-hydroxy-6-methyl-2(1H)-pyridinone