Lee D U, Kang S I, Yoon S H, Budesinsky M, Kasal A, Mayer K K, Wiegrebe W
Planta Med. 2000 Jun;66(5):480-2. doi: 10.1055/s-2000-8578.
A new steroidal alkaloid, 12-O-nicotinoylsarcostin, gagamine (1), was isolated from the roots of Cynanchum caudatum Max. (Asclepiadaceae), together with a known alkaloid, gagaminine (2). Their structures were established using spectroscopic methods, some 13C-NMR data of 2 have to be revised.
