Using O=Cc1ccc([N+](=O)[O-])cc1, CC(=O)C(C)(CO)CO to produce CC(=O)C1(C)COC(c2ccc([N+](=O)[O-])cc2)OC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.