Using COC(=O)c1cc(-c2ccc(OC)cc2)nn(CC=Cc2ccc(Cl)cc2)c1=O to produce COc1ccc(-c2cc(C(=O)O)c(=O)n(CC=Cc3ccc(Cl)cc3)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.