Using CCN=C=NCCCN(C)C, CC(C)(C)OC(=O)N(C[C@H](O)COc1ccccc1)C1CCCc2ccc(C(=O)O)cc2C1 to produce CNC(=O)c1ccc2c(c1)CC(N(C[C@H](O)COc1ccccc1)C(=O)OC(C)(C)C)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.