Using Clc1cccc(N2CCN(CCCNC(c3ccccc3)(c3ccccc3)c3ccccc3)CC2)c1 to produce NCCCN1CCN(c2cccc(Cl)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.