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 (4S)-4-amino-5-[[(2R)-3-(1H-imidazol-5-yl)-1-methoxy-1-oxopropan-2-yl]amino]-5-oxopentanoic acid .
user
C12H18N4O5
assistant