Arylethyl (= Phenylethanoid) Glycosides and Oligosaccharide from the Stem of Cistanche tubulosa

✍ Scribed by Peng-Fei Tu; Zhi-Hong Song; Hai-Ming Shi; Yong Jiang; Yu-Ying Zhao

• Book ID: 102253381
• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: German
• Weight: 106 KB
• Volume: 89
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200690096

✦ Synopsis

Three new analogues of the arylethyl (= phenylethanoid) glycoside echinacoside (5), namely cistantubulosides A (1), B 1 /B 2 (2a/2b), and C 1 /C 2 (3a/3b), and one new oligosaccharide, cistantubulose A 1 /A 2 (4a/4b), were isolated from the stems of Cistanche tubulosa (SCHENK) R. WIGHT, together with five known compounds, i.e., campneoside I, campneoside II (6), echinacoside (5), tubuloside, and cistanoside F. Among the compounds isolated, 2a/2b, 3a/3b, 4a/4b, campneoside I, campneoside II (6), and cistanoside F each consisted of a pair of epimers. The structures of the new compounds were elucidated on the basis of spectral data.