Using COC(=O)CCSC(SCCC(=O)OC)c1cccc(C=Cc2ccc3ccc(Cl)cc3n2)c1 to produce O=C(O)CCSC(SCCC(=O)O)c1cccc(C=Cc2ccc3ccc(Cl)cc3n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.