THE DETERMINATION OF THE CHEMICAL STRUCTURE OF TENACISSIGENIN——A NEW C 21 STEROID FROM MARSDENIA TENACISSIMA(ROXB.)WIGHT ET ARN.
LUO SI-QI, XU GUANG-YI, YI DA-NIAN, JIN HUI-FANG, JIA ZHEN-KUI, MAO TIAN-BAO
Acta Chimica Sinica . 1982, (4): 321 -324 .