You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[(2S,3S)-4-[(4S)-4-ethenyl-7-methyl-5-oxo-6-prop-2-enyl-1,3,6-thiadiazepan-3-yl]-3-hydroxy-4-oxo-1-phenylbutan-2-yl]pyridine-2-carboxamide ?
user
C26H30N4O4S
assistant