Using Nc1ccc(N)c(C(SCCC(=O)O)c2ccccc2Cl)c1, CCOC(=O)Cl to produce CCOC(=O)Nc1ccc2c(c1)C(c1ccccc1Cl)SCCC(=O)N2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.