Using COc1ccc2c(OCCn3cc(-c4cccc(CNC(=O)OC(C)(C)C)c4)ccc3=O)ccnc2c1 to produce COc1ccc2c(OCCn3cc(-c4cccc(CN)c4)ccc3=O)ccnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.