Using CCCn1c(=O)[nH]c(N)c(NC(=O)c2ccc(Cl)nc2)c1=O to produce CCCn1c(=O)[nH]c2nc(-c3ccc(Cl)nc3)[nH]c2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.