Using CC(=O)Nc1ccc(CN2CCN(C(=O)OC(C)(C)C)[C@@H](C)C2)c(C)c1 to produce Cc1cc(N)ccc1CN1CCN(C(=O)OC(C)(C)C)[C@@H](C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.