Using O=C1Nc2cccnc2N(C(=O)CCl)c2cc(Cl)ccc21, CCN(CC)CC1CCCCN1 to produce CCN(CC)CC1CCCCN1CC(=O)N1c2cc(Cl)ccc2C(=O)Nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.