T. Sekine et al., STRUCTURE OF ASPARAGAMINE-A, A NOVEL POLYCYCLIC ALKALOID FROM ASPARAGUS-RACEMOSUS, Chemical and Pharmaceutical Bulletin, 42(6), 1994, pp. 1360-1362
A new cage-type alkaloid, asparagamine A (1), was isolated from the ro
ots of Asparagus racemosus Willd. (Liliaceae). The relative stereostru
cture was elucidated by spectroscopic, chemical and single crystal X-r
ay analyses as a novel polycyclic pyrrolizidine derivative.