Using CN1CCN([C@H]2CC[C@@H](N(Cc3ccccc3)Cc3ccccc3)CC2)CC1 to produce CN1CCN([C@H]2CC[C@H](N)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.