Using CCCn1nc2c(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)nc3ccccc3c2c1CCCCO to produce CCCn1nc2c(N)nc3ccccc3c2c1CCCCO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.