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 4,7-dimethyl-4a,8-bis(phenylmethoxymethoxy)-8a-prop-1-ynyl-5,6,7,8-tetrahydrochromen-2-one .
user
C30H34O6
assistant