['O=C/C=C/c1ccco1', 'Nc1nc(CC(=O)O)cs1', 'O=C(O)Cc1cscn1', 'NC(=O)/C=C/c1ccco1', 'Cc1ccco1', 'CC(=O)Nc1nc(CC(=O)O)cs1', 'CC(=O)O', 'O=C(/C=C/c1ccco1)Nc1nccs1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(/C=C/c1ccco1)Nc1nccs1.