You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4,4,11,11-tetramethyl-6-(oxiran-2-ylmethoxymethyl)-3,5,7,10,12-pentaoxatricyclo[7.3.0.02,6]dodecane is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H24O7
assistant