Using CN1CCNCC1, CC(C)(NC(=O)OCc1ccccc1)C(=O)O to produce CN1CCN(C(=O)C(C)(C)NC(=O)OCc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.