['CC(CN)CO', 'Cc1ccc(-c2[nH]ncc2C)o1', 'CC(C)CO', 'Cc1ccc(-c2[nH]ncc2CN)o1', 'CNCC(C)CO', 'Cc1ccc(-c2ccn[nH]2)o1', 'Cc1ccco1', 'CC(CO)CNCc1cn[nH]c1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1coc(-c2ccn[nH]2)c1.