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 [(2S)-5-[3-[(Z)-3-[amino(2-hydroxyethyl)amino]-2-(methylideneamino)prop-2-enyl]-5-methyl-2,4-dioxopyrimidin-1-yl]oxolan-2-yl]methyl tert-butyl carbonate .
user
C21H33N5O7
assistant