Using O=C(NCCCBr)OCc1ccccc1, Clc1cccc(N2CCNCC2)c1 to produce O=C(NCCCN1CCN(c2cccc(Cl)c2)CC1)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.