Using NCC(=O)O, CC(C)(C)OC(=O)N[C@@H](C(=O)O)C1CCCCC1 to produce CC(C)(C)OC(=O)N[C@@H](C(=O)NCC(=O)O)C1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.