Sur quelques analogues fluores des [1] benzothiopyrano[4,3-b]indoles et des 6H[1] benzothiopyrano[4,3-b] quinoleines

2-, 3-, and 4-Fluorinated analogs of the carcinogenic 1]-benzothiopyrano4,3-b]indoles and of 6H1]benzothiopyrano-4,3-b]quinolines have been synthesized from the corresponding fluorothiochromanones. Nmr spectral data (at 60 Mc) of the six base molecules are reported. Biological tests for the possible carcinogenic activity of these new compounds, currently under way, have already shown one of them to be a powerful sarcomagen.