You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S)-3-amino-3-[5-[(4-oxo-3,5-dihydro-2H-1,5-benzothiazepin-3-yl)methyl]-1,2,4-oxadiazol-3-yl]propanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H16N4O4S
assistant