Oligosaccharides from Hoya carnosa.
Oligosaccharides A, B, and C (1-3, respectively) were isolated from the stem of Hoya carnosa. Their structures were established by NMR and chemical methods. Compounds 1 and 2 were 6-deoxy-3-O-methyl-beta-allopyranosyl(1-->4)-beta-cymaropyranosyl( 1-- >4)-beta-cymaropyranosyl(1-->4)-beta-cymaronic acid delta-lactone and 6-deoxy-3-O-methyl-beta-allopyranosyl(1-->4)-beta-oleandropyranosyl++ +(1 -->4)-beta-cymaropyranosyl(1-->4)-beta-cymaronic acid delta-lactone, respectively. Compound 3 was the sodium salt of 2.
Yoshikawa
K
K
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima 770-8514, Japan. yosikawa@ph.bunri-u.ac.jp
Nishino
H
H
Arihara
S
S
Chang
H C
HC
Wang
J D
JD
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification*; D010944:Plants / Q000737:chemistry*; D013057:Spectrum Analysis
D009844:Oligosaccharides