Using Oc1cccc2c1OCCN2CCCNCc1ccc2ccccc2c1, COC(=O)CBr to produce COC(=O)COc1cccc2c1OCCN2CCCNCc1ccc2ccccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.