Using CCOC(=O)CC1(CC)CCN(c2ccnc(Nc3cnn(C)c3)n2)C1=O to produce CCC1(CC(=O)O)CCN(c2ccnc(Nc3cnn(C)c3)n2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.