Using COc1ccccc1OCCN, NC(=O)c1ccnc(N2CCC(=O)CC2)n1 to produce COc1ccccc1OCCN=C1CCN(c2nccc(C(N)=O)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.