You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule ethyl 5-[(5-isocyanato-1,3,3-trimethylcyclohexyl)methylcarbamoylamino]-3-methyl-1,2-oxazole-4-carboxylate ?
user
C19H28N4O5
assistant