抄録
Conversion of l-abietic acid, the main component of pine rosin, to steroids was planned, and syntheses of the ketone compounds (VI and VII), important intermediates in the synthesis of the skeleton of steroid antipodes, was successfully concluded in the present series of work. Since the conversion of these VI and VII to steroidal skeleton is already known in analogous compounds, availability of these intermediates has opened a way for the synthesis of steroid antipodes from diterpenes.
