Using COC(=O)Cc1cc(Nc2ncnc3cc(OCCCCl)c(OC)cc23)[nH]n1 to produce COc1cc2c(Nc3cc(CC(=O)O)n[nH]3)ncnc2cc1OCCCCl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.