Using COc1ccc(NC(=O)OC(C)(C)C)c(C)c1, CC(C)(C)C=O to produce COc1ccc(NC(=O)OC(C)(C)C)c(CC(O)C(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.