Using CN1C(=O)C(NC(=O)OCc2ccccc2)N=C(C2CCCCC2)c2ccccc21 to produce CN1C(=O)C(N)N=C(C2CCCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.