Using COC(=O)c1cc2nc(Nc3c(Cl)cncc3Cl)sc2c2c1OC(C)(C)C2 to produce CC1(C)Cc2c(c(C(=O)O)cc3nc(Nc4c(Cl)cncc4Cl)sc23)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.