Using CCN=C=NCCCN(C)C, CC[C@@H]1C(=O)N(C)c2cnc(-n3cc(C(=O)O)cn3)nc2N1C1CCCC1 to produce CC[C@@H]1C(=O)N(C)c2cnc(-n3cc(C(=O)N(C)C)cn3)nc2N1C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.