Using O=Cc1ccc(Cl)s1, CCCOC(=O)Nc1c(C)cc(N)cc1C to produce CCCOC(=O)Nc1c(C)cc(NCc2ccc(Cl)s2)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.