Using O=C(c1cc2cc(Cl)ccc2[nH]1)N1CCNCC1, OCCBr to produce O=C(c1cc2cc(Cl)ccc2[nH]1)N1CCN(CCO)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.