Using CN1CCN(C(=O)OC(C)(C)C)[C@H](COC(=O)N2CCN(c3ccccc3)CC2)C1 to produce CN1CCN[C@H](COC(=O)N2CCN(c3ccccc3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.