Using O=Cc1ccc2[nH]ccc2c1, CC(C)(C)OC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)n1ccc2cc(C=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.