Using COCCN(CCOC)C(=O)c1ccc(-c2cc3c(C)cccc3c(=O)[nH]2)cc1 to produce Cc1cccc2c(=O)[nH]c(-c3ccc(C(=O)N(CCO)CCO)cc3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.