Using COc1cc(-n2ncc3cc(-c4ccc(Cl)cc4)sc3c2=O)ccc1OCC(C)(C)O, CC(C)(C)OC(=O)NCC(=O)O to produce COc1cc(-n2ncc3cc(-c4ccc(Cl)cc4)sc3c2=O)ccc1OCC(C)(C)OC(=O)CNC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.