Using COc1ccc2c(c1)N(CCN1CCC(NCc3ccc4c(n3)NC(=O)CO4)CC1)C(=O)CO2 to produce O=C1COc2ccc(CNC3CCN(CCN4C(=O)COc5ccc(O)cc54)CC3)nc2N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.