You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (4S)-5-(4-ethoxycarbonyloxypiperazin-1-yl)-4-[[4-(furan-3-yl)-6-phenylpyridine-2-carbonyl]amino]-5-oxopentanoic acid ?
user
C28H30N4O8
assistant