Fructose-derived carbohydrates from Alisma orientalis.
Nine fructose-derived carbohydrates were obtained from the methanol extract from the rhizome of Alisma orientalis. On the basis of spectroscopic analysis, their structures were determined to be alpha-D-fructofuranose (1), beta-D-fructofuranose (2), ethyl alpha-D-fructofuranoside (3), ethyl beta-D-fructofuranoside (4), 5-hydroxymethyl-furaldehyde (5), sucrose (6), raffinose (7), stachyose (8) and verbascose (9), along with two oligosaccharides of manninotriose (10) and verbascotetraose (11). Compounds 3, 4 and 7-11 were isolated from this plant for the first time. A hypothetical biosynthesis pathway among these isolated carbohydrates (1-11) was briefly introduced.
Zhang
Zhen
Z
Department of Natural Products for Chemical Genetic Research, Key Laboratory of Brain Functional Genomics, Ministry of Education & Shanghai Key Laboratory of Brain Functional Genomics (MOE & SBFG), East China Normal University, Shanghai 200062, China.
Wang
Dong
D
Zhao
Yun
Y
Gao
Hong
H
Hu
Ying-He
YH
Hu
Jin-Feng
JF
D034902:Alisma / Q000737:chemistry* / Q000378:metabolism; D002241:Carbohydrates / Q000096:biosynthesis / Q000737:chemistry / Q000302:isolation & purification*; D005632:Fructose / Q000378:metabolism; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry
D002241:Carbohydrates; D010936:Plant Extracts; D005632:Fructose