Using CC[C@@H](C[C@H](O)[C@@H](C)N(Cc1ccccc1)Cc1ccccc1)c1ccccc1 to produce CC[C@@H](C[C@H](O)[C@@H](C)N)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.