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 5-[(2R)-2-[2-(4-carbamimidoylanilino)-1-hydroxy-2-oxoethyl]-3-oxomorpholin-4-yl]-2-fluorobenzoic acid .
user
C20H19FN4O6
assistant