Four cyclitol glycosides and a new tetrol and pentol, were obtained, along with five known cyclitols from the fresh leaves of Marsdenia tomentosa. The locations of the glycosidic linkage in the cyclitols were determined by spectral and chemical methods.
cyclitols, leaves, Asclepiadaceae, Marsdenia tomentosa, kijolanitol, conduritol A alpha-D-galactoside
Publication DOI: 10.1016/S0031-9422(97)00766-8Journal NLM ID: 0151434Publisher: Elsevier
Institutions: Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan, Faculty of Integrated Arts and Sciences, Hiroshima University, Higashihiroshima, Japan
Methods: 13C NMR, 1H NMR, NOE, methylation, IR, FAB-MS, acid hydrolysis, GC, HPLC, extraction, acetylation, methylation (Hakomori method), optical rotataion measurement, melting point determinationmethylation (Hakomori method), cathalytic reduciton
Found