You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1R,2S,6S,7S,9S,10S)-4,4,10-trimethyl-7-[(E)-prop-1-enyl]-3,5,8,11-tetraoxatricyclo[7.3.0.02,6]dodecan-12-one by IUPAC nomenclature, provide its molecular formula.
user
C14H20O5
assistant