You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 2-[(4-chlorophenyl)methylsulfanyl]-4-(4-ethoxyphenyl)-N-[[(2S)-2-methylspiro[2.5]octan-6-yl]methyl]-4-oxobutanamide ?
user
C29H36ClNO3S
assistant