Using N=C(N)n1cccn1, CCOC(=O)C1(COc2ccc3c(c2)CNCC3)CCN(c2ccncc2)CC1 to produce CCOC(=O)C1(COc2ccc3c(c2)CN(C(=N)N)CC3)CCN(c2ccncc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.