You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[[(1R)-1-cyano-1-cyclopropylethyl]amino]-2-oxoethyl] 1-methylpyrrole-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H17N3O3
assistant