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 N-(1-cyclohexyl-2-oxoethyl)formamide;N-[1,2-dioxo-1-(prop-2-enylamino)heptan-3-yl]-1-methylpyrrolidine-2-carboxamide;ethane;propane .
user
C30H56N4O5
assistant