Using CNC1CCCCC1, CCCn1c(=O)cnc(=O)c2ccccc21 to produce CCCN1C(=O)CN=C(N(C)C2CCCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.