Using CS(=O)(=O)c1nn(Cc2nc3cc(Cl)ccc3n2[C@@H]2CCNC2)c2cnccc12, OCCBr to produce CS(=O)(=O)c1nn(Cc2nc3cc(Cl)ccc3n2[C@@H]2CCN(CCO)C2)c2cnccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.