Plant Diversity ›› 1992, Vol. 14 ›› Issue (04): 1-3.

• Articles •    

A NEW DAMMARANE TRITERPENOID FROM NEOALSOMITRA INTEGRIFOLIOLA

QIU Ming-Hua, ME Rui-Lin, LI Zhong-Rong, Ryoji KASAI, ZHOU Jun   

  1. Laboratory of Phytochemistry, Kunming Institute of Botany, Academia Sinica, Kunming 650204;Institute of Pharmaceutical Science, Hiroshima University, School of Medicine, Hiroshima 734, Japan
  • Online:1992-08-25 Published:1992-08-25

Abstract: A new dammarane triterpenoid, neoalsomitin A(l) were isolated from the rhizomes of Neoalsomitra integrifoliola, a Chinese cucurbitaceous plant collected in Xishuangbanna, South-Yunnan, China. On the basis of spectral analyses and chemical evidence, the chemical structure of neoalsomitin A (1) was established as 3β, 12β, 23β, 25-tetrahydroxy-20S, 24S-epoxy-dammarane.

Key words: Cucurbitaceae