Using C[C@H](Nc1ncnc2[nH]cnc12)c1nc2ccccc2n1[C@@H]1CCCNC1, CC(C)=O to produce CC(C)N1CCC[C@@H](n2c([C@H](C)Nc3ncnc4[nH]cnc34)nc3ccccc32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.