Using CN(CCN1C(=O)CCc2cc(NC(=N)c3cccs3)ccc21)C(=O)Oc1ccccc1 to produce CNCCN1C(=O)CCc2cc(NC(=N)c3cccs3)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.