Using CN(CCCCNC1CCCc2cccnc21)C(=O)OC(C)(C)C, Cc1cnc(C=O)c(C)c1 to produce Cc1cnc(CN(CCCCN(C)C(=O)OC(C)(C)C)C2CCCc3cccnc32)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.