Using COC(=O)c1ccc(-c2ccc3c(c2)CC[C@H](CN(C[C@H](O)c2ccc(-n4c(C)ccc4C)nc2)C(=O)OC(C)(C)C)O3)cc1 to produce COC(=O)c1ccc(-c2ccc3c(c2)CC[C@H](CN(C[C@H](O)c2ccc(N)nc2)C(=O)OC(C)(C)C)O3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.