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 3-[(4R,5S)-5-(4-bromothiophen-2-yl)-4-pyridin-2-yl-2-sulfanylideneimidazolidin-1-yl]-N-naphthalen-1-ylpropanamide .
user
C25H21BrN4OS2
assistant