Using O=C1CCC(CC(C(=O)Nc2nccs2)c2ccc(Cl)c(Cl)c2)C1, CON to produce CON=C1CCC(CC(C(=O)Nc2nccs2)c2ccc(Cl)c(Cl)c2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.