You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-methylpropyl (6S)-3-ethyl-4-methyl-6-[4-[[(2S)-2-phenylbutanoyl]amino]phenyl]-2-sulfanylidene-1,6-dihydropyrimidine-5-carboxylate into molecular formula.
user
C28H35N3O3S
assistant