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-[[(7S)-4-(4-ethylphenyl)sulfonyl-3,5-dioxo-4-azatricyclo[5.2.1.02,6]decan-8-yl]sulfanyl]ethyl prop-2-enoate .
user
C22H25NO6S2
assistant