Using CC(C)(C)OC(=O)N[C@H]1CCC[C@@H]1N, O=C1CCC1 to produce CC(C)(C)OC(=O)N[C@H]1CCC[C@@H]1NC1CCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.