Using CCn1c(=O)c(-c2cc(NC(=O)Nc3ccccc3)c(F)cc2Cl)cc2cnc(N)cc21, COC(=O)Cl to produce CCn1c(=O)c(-c2cc(NC(=O)Nc3ccccc3)c(F)cc2Cl)cc2cnc(NC(=O)OC)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.