Using O=C(O)C1(c2ccc(-c3cnc4ncc(C5(c6ccc7ncccc7c6)CC5)n4c3)cc2)CC1, CCN to produce CCNC(=O)C1(c2ccc(-c3cnc4ncc(C5(c6ccc7ncccc7c6)CC5)n4c3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.