['CCC', 'NC(=S)COc1ccc(O)cc1', 'CC(N)=S', 'CCCOc1ccc(O)cc1', 'CCCO', 'NC(=S)COc1ccccc1', 'NC(=S)CO', 'CCCOc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.