Using CC(C)(C)OC(=O)N1CCC(CNC(=O)c2ccncc2)(N2CCN(C3CC3)CC2)CC1 to produce O=C(NCC1(N2CCN(C3CC3)CC2)CCNCC1)c1ccncc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.