Using CCN=C=NCCCN(C)C, CC1(C)OB(c2ccc(C(=O)O)cc2)OC1(C)C to produce CC1(C)OB(c2ccc(C(N)=O)cc2)OC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.