Using O=C(Cl)c1ccccc1, CCn1c(C)cc(=O)n(CC)c1=O to produce CCn1c(C)c(C(=O)c2ccccc2)c(=O)n(CC)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.