You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(13R,17R)-8,22-dimethoxy-14,14,16,16-tetramethyl-4,6,24,26-tetraoxa-13lambda4,17lambda4-dithia-12,18-diazapentacyclo[18.7.0.02,10.03,7.023,27]heptacosa-1(27),2,7,9,11,18,20,22-octaene 13,17-dioxide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28N2O8S2
assistant