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 methyl (2S,4R)-4-[(2E)-2-hydroxyimino-2-(4-methoxy-3,5-dimethylphenyl)ethyl]-4-methylpyrrolidine-2-carboxylate .
user
C18H26N2O4
assistant