Using CCOC(=O)C(=O)N1CCN(c2ccc(C)cc2C(C)(C)C)CC1 to produce Cc1ccc(N2CCN(C(=O)C(=O)O)CC2)c(C(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.