Using CN, O=C1CCc2cc(C(=O)N3CCN(CCC(Cl)c4ccccc4)CC3)ccc2N1 to produce CNC(CCN1CCN(C(=O)c2ccc3c(c2)CCC(=O)N3)CC1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.