You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 7-[3-(aminomethyl)pyrrolidin-1-yl]-1-ethyl-6-fluoro-4-oxo-5H-1,6-naphthyridine-3-carboxylic acid .
user
C16H21FN4O3
assistant