Using COC1CCNCC1, CC(C)[C@H](NC(=O)OC(C)(C)C)C(=O)O to produce COC1CCN(C(=O)[C@@H](NC(=O)OC(C)(C)C)C(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.