Using O=C1Nc2ccc(S(=O)(=O)N3CCC[C@H]3COc3ccccc3)cc2C1=O, CCOCC to produce CN1C(=O)C(=O)c2cc(S(=O)(=O)N3CCC[C@H]3COc3ccccc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.