Using CCOC(=O)/C=C/c1csc(NC2CCN(C(=O)c3ccc(Cl)cc3)C2)n1 to produce O=C(O)/C=C/c1csc(NC2CCN(C(=O)c3ccc(Cl)cc3)C2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.