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 (4S,5S,6Z,9S,10S,12E)-16-[(3,4-dichlorophenyl)methoxy]-9,10,18-trihydroxy-4,5-dimethyl-3-oxabicyclo[12.4.0]octadeca-1(14),6,12,15,17-pentaene-2,8-dione .
user
C26H26Cl2O7
assistant