Using CC(C)(C)N, O=C(O)c1cc2cc(NC(=O)C3(c4ccc5c(c4)OCO5)CC3)ccc2[nH]1 to produce CC(C)(C)NC(=O)c1cc2cc(NC(=O)C3(c4ccc5c(c4)OCO5)CC3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.