Using COc1ccc(C(=O)NCC2CCNCC2)cc1OCCc1ccc(Cl)cc1Cl, O=C(O)CBr to produce COc1ccc(C(=O)NCC2CCN(CC(=O)O)CC2)cc1OCCc1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.