['CC(C)NC(C)C', 'CNc1nc(S[C@@H](C)C=O)nc2ccccc12', 'CCC', 'CNc1nc(S[C@@H](C)C(=O)NC(C)C)nc2ccccc12', 'CCC(=O)N(C(C)C)C(C)C', 'CNc1nc(S)nc2ccccc12', 'CN', 'CC(C)N(C(=O)[C@H](C)Sc1ncc2ccccc2n1)C(C)C', 'CC(C)N(C(=O)[C@H](C)S)C(C)C', 'CNc1ncnc2ccccc12']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc2ncncc2c1.