You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[4-[[(1R)-2,2-dimethyl-1-(5-methylfuran-2-yl)propyl]amino]-2-oxido-1,2,5-oxadiazol-2-ium-3-yl]amino]-2-hydroxy-N,N-dimethylbenzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H27N5O6S
assistant