Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, O=C1NCC2CCCCC12 to produce CC(C)(C)OC(=O)N1CC2CCCCC2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.