Monoterpene constituents from Cistanche tubulosa--chemical structures of kankanosides A-E and kankanol-

Chem Pharm Bull (Tokyo). 2006 May;54(5):669-75. doi: 10.1248/cpb.54.669.

Abstract

Four new iridoid glycosides, kankanosides A (1), B (2), C (3), and D (4), a chlorinated iridoid, kankanol (5), and an acyclic monoterpene glycoside, kankanoside E (6), were isolated from the methanolic extract of dried stems of Cistanche tubulosa (SCHRENK) R. WIGHT (Orobanchaceae) together with 16 known compounds. The structures of these new compounds (1-6) were determined on the basis of the chemical and physicochemical evidence.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbohydrate Sequence
  • Chemical Phenomena
  • Chemistry, Physical
  • Chromatography, High Pressure Liquid
  • Cistanche / chemistry*
  • Hydrogen-Ion Concentration
  • Hydrolysis
  • Iridoids / chemistry*
  • Monoterpenes / chemistry*
  • Plant Extracts / chemistry
  • Plant Stems / chemistry
  • Spectrophotometry, Ultraviolet
  • beta-Glucosidase / chemistry

Substances

  • Iridoids
  • Monoterpenes
  • Plant Extracts
  • kankanol
  • beta-Glucosidase