Using O=C1OC2(CCNC2)c2ccncc21, CCOC(=O)C1(c2ccc(N3CCCC3)nc2)CC1 to produce O=C1O[C@]2(CCN(C(=O)C3(c4ccc(N5CCCC5)nc4)CC3)C2)c2ccncc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.