You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1R,2S,6R,7S,12S)-2,6-dimethyl-6-[[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]-14-oxatetracyclo[8.8.0.02,7.012,16]octadeca-10,16-dien-15-one .
user
C26H38O8
assistant