You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 6,8-dimethoxy-3a-[(2Z,4E)-4-methoxyhepta-2,4,6-trienyl]-3-phenyl-2,3-dihydro-1H-cyclopenta[b][1]benzofuran-8b-ol ?
user
C27H30O5
assistant