Using CCOC(=O)CC(C)=O, CCNC(=O)c1cc(Cl)c(N=[N+]=[N-])cc1OC to produce CCNC(=O)c1cc(Cl)c(-n2nnc(C(=O)O)c2C)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.