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 propan-2-yl (2Z,5S)-2-[(1,3-dimethyl-2-oxobenzimidazol-5-yl)methylidene]-7-methyl-5-(3-nitrophenyl)-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate .
user
C27H25N5O6S
assistant