Using COc1ccc2c(OCc3nnc4ccc(C(=O)O)cn34)ccnc2c1, NC1CC1 to produce COc1ccc2c(OCc3nnc4ccc(C(=O)NC5CC5)cn34)ccnc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.