Using CCOC(=O)c1nnc(NC(=O)c2nnn(Cc3ccc(Cl)c(Cl)c3)c2C)s1 to produce Cc1c(C(=O)Nc2nncs2)nnn1Cc1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.