Using CCc1nc2c(N)nc3cc(OCc4ccccc4)ccc3c2n1CCCCNC(=O)OC(C)(C)C to produce CCc1nc2c(N)nc3cc(OCc4ccccc4)ccc3c2n1CCCCN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.