You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 3-hydroxy-2-methylpyran-4-one;2-methyl-3-phenylmethoxypyran-4-one;4-oxo-3-phenylmethoxypyran-2-carbaldehyde;4-oxo-3-phenylmethoxypyran-2-carboxylic acid;2-[(E)-2-phenylethenyl]-3-phenylmethoxypyran-4-one .
user
C65H54O18
assistant