Using O=C(n1ccnc1)n1ccnc1, CC1(C)OB(c2ccc(N)c(N)c2)OC1(C)C to produce CC1(C)OB(c2ccc3[nH]c(=O)[nH]c3c2)OC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.