['NC[C@@H]1CCCO1', 'N#C/C(C=O)=N/Nc1ccccc1', 'C[C@@H]1CCCO1', 'N#C/C(=N/Nc1ccccc1)C(N)=O', 'C1CCOC1', 'CNC(=O)/C(C#N)=N\\Nc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(C=NNc1ccccc1)NC[C@@H]1CCCO1.