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