You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 13,16-bis-(4-methylphenyl)sulfonyl-1,4,7-trioxa-10,13,16,19-tetrazacyclohenicosane using the IUPAC nomenclature.
user
C28H44N4O7S2
assistant