['CCc1nc(C)cs1', 'CNC(=S)NC(C)C', 'CCC', 'CCc1nc(CN(C)C(N)=S)cs1', 'CC', 'CC(C)NC(=S)N(C)Cc1cscn1', 'CCc1nccs1', 'CC(C)NC(=S)N(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1cscn1.