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-[4-[5-(1-cyclopentylpyrrol-3-yl)-4-pyridin-2-yl-2-sulfanylideneimidazolidin-1-yl]-2-methylphenyl]-2-methoxyacetamide ?
user
C27H31N5O2S
assistant