Using OCCBr, Clc1ccc(C(OC2CCNCC2)c2ccccn2)cc1 to produce OCCN1CCC(OC(c2ccc(Cl)cc2)c2ccccn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.