Using CC1(C)OB(c2ccc3ocnc3c2)OC1(C)C, COCCNc1nc(Cl)cc2ncn(C)c(=O)c12 to produce COCCNc1nc(-c2ccc3ocnc3c2)cc2ncn(C)c(=O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.