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 N-[(E,2S)-7-amino-1-[[1-[2-imino-2-[(2-methylpropan-2-yl)oxycarbonylamino]ethyl]-2-oxopyridin-3-yl]amino]-1,7-dioxohept-5-en-2-yl]carbamate .
user
C21H30N6O7
assistant