Using CC(C)(C)OC(=O)N1CC(N[C@H]2CCN(C(=O)OCc3ccccc3)C2)C1 to produce CC(C)(C)OC(=O)N1CC(N[C@H]2CCNC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.