Using CCOC(=O)C1C2CCC(C2)N1C(=O)OC(C)(C)C, CNOC to produce CON(C)C(=O)C1C2CCC(C2)N1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.