Using OB(O)C1CC1, O=C1N(c2cc(Cl)ncn2)CCN1c1cnccc1C1CC1 to produce O=C1N(c2cc(C3CC3)ncn2)CCN1c1cnccc1C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.