Author's Organization:Faculty of Pharmaceutical Sciences, Kyoto University Faculty of Pharmaceutical Sciences, Kyoto University Faculty of Pharmaceutical Sciences, Chiba University Faculty of Pharmaceutical Sciences, Chiba University
The structures of two Lycopodium alkaloids, lycothunine and lycophlegmarine, were determined by an X-ray analysis. The configurations of C3-C4 bond of fawcettimine and fawcettidine were also established.