STUDIES ON THE GELSEMIUM ALKALOIDS Ⅰ. THE STRUCTURE OF GELSENICINE
DU XIU-BAO, DAI YUN-HUA, ZHANG CHANG-LIN, LU SHU-LIN, LIU ZEU-GUO
Acta Chimica Sinica . 1982, (12): 1137 -1141 .