You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1R,5R)-6,6-dimethyl-2-methylidene-3-bicyclo[3.1.1]heptanyl]-2-[2-(methanesulfonamido)phenyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H26N2O3S
assistant