Conduritol F 3-0- and 4-O-glucosides were obtained from Cynanchum liukiuense, along with conduritol F which was identified in all Asclepiadaceous plants examined, Tylophora tanakae, Asclepias curassavica and A. fruticosa, as well as in Marsdenia tomentosa. The pattern of the glucosidic linkage to conduritol F differed between individual species, 2-O-glucoside from T tanakae and M. tomentosa, 3-O-glucoside from A. curassavica, but none from A. fruticosa. Along with conduritol F glucosides, an 11-glucosyloxy-megastigmane and a monoterpenoid glucoside were isolated from C. liukiuense.
Asclepias curassavica, Tylophora tanakae, Asclepias fruticosa, Cynanchum liukiuense, conduritol F glucoside, 11-glucosyloxy-megastigmane
NCBI PubMed ID: 10923848Publication DOI: 10.1248/cpb.48.1090Journal NLM ID: 0377775Publisher: Pharmaceutical Society Of Japan
Correspondence: abefumi@fukuoka-u.ac.jp
Institutions: Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan, Faculty of Integrated Arts and Sciences, Hiroshima University, Higashihiroshima, Japan
Methods: 13C NMR, 1H NMR, TLC, enzymatic hydrolysis, acid hydrolysis, GC, HPLC, extraction, optical rotation measurement, CD, CC, derivatization, evaporation, HR-FAB-MS, HR-EI-MS
Found