Using CCOC(=O)C1(CCCn2c(=O)ccc3ccncc32)CCN(C(=O)OC(C)(C)C)CC1 to produce CCOC(=O)C1(CCCn2c(=O)ccc3ccncc32)CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.