Using COC(=O)CCN(C(=O)OC(C)(C)C)[C@@H](CC(=O)OC)C(=O)O, CC(C)(C)N to produce CC(C)(C)OC(=O)N1CCC2(CC2)CC1C=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.