Using COC(=O)Cl, Nc1ccc2c(c1)CC(N(Cc1ccccc1)C[C@H](O)COc1ccccc1)CCC2 to produce COC(=O)Nc1ccc2c(c1)CC(N(Cc1ccccc1)C[C@H](O)COc1ccccc1)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.