Using C[C@H](Oc1cccc2c(CC(C)(C)NC(=O)OC(C)(C)C)c[nH]c12)C(=O)N1CCOCC1 to produce C[C@H](Oc1cccc2c(CC(C)(C)N)c[nH]c12)C(=O)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.