Using C=CCCC(O)C[C@@H]1C[C@@]1(C(=O)OCC)N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C to produce C=CCCC(=O)C[C@@H]1C[C@@]1(C(=O)OCC)N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.