Using NC(=O)c1cccc2nc(C3CCN(C(=O)OCc4ccccc4)CC3)oc12, CCCCC=O to produce CCCCCN1CCC(c2nc3cccc(C(N)=O)c3o2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.