You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [2-(2,6-dimethylanilino)-2-oxoethyl]-methyl-[(2S)-1-oxo-1-(4-sulfamoylanilino)propan-2-yl]azanium .
user
C20H27N4O4S+
assistant