Using COc1ccc(CN2CCN(C(c3ccccc3)c3ccc(Cl)cc3)CC2)cc1 to produce Clc1ccc(C(c2ccccc2)N2CCNCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.