You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,2R,5S,7R,9R,10S,14R,15R,19S)-7-[(2R,3S,5S,6S)-3,5-dimethoxy-6-methyl-4-oxooxan-2-yl]oxy-15-[(2R,5S,6R)-5-(dimethylamino)-6-methyloxan-2-yl]oxy-19-ethyl-14-methyl-20-oxatetracyclo[10.10.0.02,10.05,9]docosa-3,11-diene-13,21-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H61NO10
assistant