You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[[1-(5,6,7,8-tetrahydrocinnolin-3-yl)azetidin-3-yl]methyl]-1,2-oxazole-4-sulfonamide into molecular formula.
user
C15H19N5O3S
assistant