Using CC(C)(C)OC(=O)NCc1ccc(OCCCCN2CCN(c3cccc(Cl)c3Cl)CC2)nc1N to produce O=C1NCc2ccc(OCCCCN3CCN(c4cccc(Cl)c4Cl)CC3)nc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.