title: Fructose-derived carbohydrates from Alisma orientalis.
abstract: 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.
authors.affiliation: 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.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Zhang
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.forename: Yun
authors.initials: Y
authors.lastname: Zhao
authors.forename: Hong
authors.initials: H
authors.lastname: Gao
authors.forename: Ying-He
authors.initials: YH
authors.lastname: Hu
authors.forename: Jin-Feng
authors.initials: JF
authors.lastname: Hu
mesh_terms: 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
chemical_list: D002241:Carbohydrates; D010936:Plant Extracts; D005632:Fructose