Using COC(=O)C1CCCc2c(-c3ccc(Cl)cc3)noc2C1 to produce COC(=O)C1CCCC(=C(N)c2ccc(Cl)cc2)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.