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 [4,5-dihydroxy-6-(hydroxymethyl)-2-[(18-hydroxy-10,10,16,17-tetramethyl-4-oxo-3,9,15-trioxatetracyclo[12.4.0.02,7.08,13]octadeca-1(14),2(7),5,8(13)-tetraen-6-yl)methoxy]oxan-3-yl] acetate .
user
C28H36O12
assistant