Using C[C@@H](Cc1c2n(c3ccc(OC4CC4)cc13)CCC2)NC(=O)OC(C)(C)C to produce C[C@H](N)Cc1c2n(c3ccc(OC4CC4)cc13)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.