Using COc1ccc(Br)c(O)c1, OCC[C@H]1CN(Cc2ccccc2)CCN1 to produce COc1ccc(Br)c(OCC[C@H]2CN(Cc3ccccc3)CCN2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.