You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,4R,5R)-8-N-benzyl-8-N-methyl-3-N,3-N-diphenyl-4-(2H-tetrazol-5-yl)-6-thia-3,8-diazabicyclo[3.2.1]octane-3,8-dicarboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H28N8O2S
assistant