Using O=C(CCc1ccccc1)c1ccc(Cl)cc1N(C(=O)c1ncco1)c1ccccc1 to produce O=c1c(Cc2ccccc2)c(-c2ncco2)n(-c2ccccc2)c2cc(Cl)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.