Using COCc1ccc(-c2nccnc2N2CCNCC2)cc1, CN(CC=O)C(=O)OC(C)(C)C to produce COCc1ccc(-c2nccnc2N2CCN(CCN(C)C(=O)OC(C)(C)C)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.