Using COC(=O)Cc1csc2cc(OC(=O)C(C)(C)C)cc(C=O)c12, CC(C)=O to produce COC(=O)Cc1csc2cc(OC(=O)C(C)(C)C)cc(C(=O)O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.