J Asian Nat Prod Res. 2002 Sep; 4(3): 197-200.

A novel steroid from Tylophora atrofolliculata Metc.

Huang XS, Yu SS, Liang XT, Li N.

Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

A novel steroid, tylophoriside A, was isolated from Tylophora atrofolliculata Metc. The structure was elucidated on the basis of spectroscopic methods and X-ray diffraction.