Using O=C1OCCO1, CC(=O)c1c(-c2ccc(Cl)cc2)c(-c2ccc(Cl)cc2)n[nH]c1=O to produce CC(=O)c1c(-c2ccc(Cl)cc2)c(-c2ccc(Cl)cc2)nn(CCO)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.