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 1-[3-[(2S,5S)-2-(4-tert-butylphenyl)-5-methyl-4-oxo-1,3-thiazolidin-3-yl]propyl]-3-ethyl-1-methylurea ?
user
C21H33N3O2S
assistant