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Catechin-7-O-glucoside
Chemical structure of catechin-7-O-glucoside
Names
IUPAC name
(2S,4S,5S)-2-[[(2R,3S)-2-(3,4-Dihydroxyphenyl)-3,5-dihydroxy-3,4-dihydro-2H-chromen-7-yl]oxy]-6-(hydroxymethyl)oxane-3,4,5-triol
Other names
(2R,3S)-Catechin-7-O-β-D-glucopyranoside
Catechin 7-O-β-glucopyranoside
(+)-Catechin 7-O-β-glucoside
(+)-Catechin 7-O-beta-D-glucopyranoside
Catechin 7-glucoside
C7G
CA-G
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/C21H24O11/c22-7-16-17(27)18(28)19(29)21(32-16)30-9-4-12(24)10-6-14(26)20(31-15(10)5-9)8-1-2-11(23)13(25)3-8/h1-5,14,16-29H,6-7H2/t14-,16+,17+,18-,19+,20+,21+/m0/s1
    Key: VLFIBROLAXKPQK-DPRDWZRASA-N
  • InChI=1/C21H24O11/c22-7-16-17(27)18(28)19(29)21(32-16)30-9-4-12(24)10-6-14(26)20(31-15(10)5-9)8-1-2-11(23)13(25)3-8/h1-5,14,16-29H,6-7H2/t14-,16+,17+,18-,19+,20+,21+/m0/s1
    Key: VLFIBROLAXKPQK-DPRDWZRABG
  • O(c2cc3O[C@H](c1ccc(O)c(O)c1)[C@@H](O)Cc3c(O)c2)[C@@H]4O[C@@H]([C@@H](O)[C@H](O)[C@H]4O)CO
Properties
C21H24O11
Molar mass 452.412 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Catechin-7-O-glucoside is a flavan-3-ol glycoside formed from catechin.

Natural occurrences[edit]

Catechin-7-O-glucoside can be isolated from the hemolymph of the European pine sawfly (Neodiprion sertifer).[1] It also occurs in relatively large quantities in cowpea (Vigna unguiculata) as the dominant flavan-3-ol monomer, and actually accounts for up to 70% of cowpea proanthocyanidins (tannins).[2]

It can also be produced by biotransformation of (+)-catechin by cultured cells of Eucalyptus perriniana.[3]

Presence in natural traditional drugs[edit]

Catechin-7-O-glucoside can be found in paeoniae radix, the crude drug made from the roots of Chinese peony (Paeonia lactiflora),[4] in red knotweed (Bistorta macrophylla, also known as Polygonum macrophyllum),[5] in the stem barks of the Nepali hog plum (Choerospondias axillaris),[6] in the Korean plum yew (Cephalotaxus koreana)[7] and in Huanarpo Macho (Jatropha macrantha).[8] (−)-Catechin 7-O-β-D-glucopyranoside is found in the bark of Rhaphiolepis umbellata.[9]

Presence in food[edit]

It is found in buckwheat groats,[10] in the red bean (the seed of Vigna umbellata, formerly known as Phaseolus calcaratus),[11] in barley (Hordeum vulgare L.) and malt.[12] (−)-Catechin 7-O'-β-D-glucopyranoside is found in rhubarb.[9]

Health effects[edit]

This compound has an antioxidant activity leading to a cytoprotective effect.[11][13]

References[edit]

  1. ^ Vihakas, Matti; Tähtinen, Petri; Ossipov, Vladimir; Salminen, Juha-Pekka (2012). "Flavonoid Metabolites in the Hemolymph of European Pine Sawfly (Neodiprion sertifer) Larvae". Journal of Chemical Ecology. 38 (5): 538–46. doi:10.1007/s10886-012-0113-y. PMID 22527054. S2CID 17064750.
  2. ^ Ojwang, Leonnard O.; Yang, Liyi; Dykes, Linda; Awika, Joseph (2013-08-15). "Proanthocyanidin profile of cowpea (Vigna unguiculata) reveals catechin-O-glucoside as the dominant compound". Food Chemistry. 139 (1–4): 35–43. doi:10.1016/j.foodchem.2013.01.117. PMID 23561075.
  3. ^ Otani, Shuichi; Kondo, Yoko; Asada, Yoshihisa; Furuya, Tsutomu; Hamada, Hatsuyuki; Nakajima, Nobuyoshi; Ishihara, Kohji; Hamada, Hiroki (2004). "Biotransformation of (+)-catechin by plant cultured cells of Eucalyptus perriniana". Plant Biotechnology. 21 (5): 407–409. doi:10.5511/plantbiotechnology.21.407.
  4. ^ Tanaka, Takashi; Kataoka, Maki; Tsuboi, Nagisa; Kouno, Isao (2000). "New Monoterpene Glycoside Esters and Phenolic Constituents of Paeoniae Radix, and Increase of Water Solubility of Proanthocyanidins in the Presence of Paeoniflorin". Chemical and Pharmaceutical Bulletin. 48 (2): 201—207. doi:10.1248/cpb.48.201. PMID 10705504.
  5. ^ Wang, S.; Wang, D.; Feng, S. (2004). "Studies on chemical constituents from Polygonum macrophyllum". Journal of Chinese Medicinal Materials. 27 (6): 411–413. PMID 15524292.
  6. ^ Li, Chang-wei; Cui, Cheng-bin; Cai, Bing; Han, Bing; Li, Ming-ming; Fan, Ming (2009). "Flavanoidal constituents of Choerospondias axillaris and their in vitro antitumor and anti-hypoxia activities". Chinese Journal of Medicinal Chemistry. 19 (1): 48–51, 64. Archived from the original on 2014-03-09.)
  7. ^ Yoon, Kee-dong; Jeong, Doc-gyun; Hwang, Yun-ha; Ryu, Jei-man; Kim, Jin-woong (2007). "Inhibitors of Osteoclast Differentiation from Cephalotaxus koreana". Journal of Natural Products. 70 (12): 2029–2032. doi:10.1021/np070327e. PMID 17994703.
  8. ^ Benavides, Angelyne; Montoro, Paola; Bassarello, Carla; Piacente, Sonia; Pizza, Cosimo (2006). "Catechin derivatives in Jatropha macrantha stems: Characterisation and LC/ESI/MS/MS quali–quantitative analysis". Journal of Pharmaceutical and Biomedical Analysis. 40 (3): 639–647. doi:10.1016/j.jpba.2005.10.004. PMID 16300918.
  9. ^ a b Nonaka, Gen'ichiro; Ezakia, Emiko; Hayashia, Katsuya; Nishioka, Itsuo (1983). "Flavanol glucosides from rhubarb and Rhaphiolepis umbellata". Phytochemistry. 22 (7): 1659–1661. doi:10.1016/0031-9422(83)80105-8.
  10. ^ Report on cereals at Phenol-Explorer.eu. Retrieved 18 December 2012.
  11. ^ a b Baek, Jin-a; Son, Young-ok; Fang, Minghao; Lee, Young-jae; Cho, Hyoung-kwon; Whang, Wan-kyunn; Lee, Jeong-Chae (2011). "Catechin-7-O-β-D-glucopyranoside scavenges free radicals and protects human B lymphoma BJAB cells on H2O2-mediated oxidative stress". Food Science and Biotechnology. 20: 151–158. doi:10.1007/s10068-011-0021-x. S2CID 85203995., INIST 23809899
  12. ^ Friedrich, Wolfgang; Galensa, Rudolf (2002). "Identification of a new flavanol glucoside from barley (Hordeum vulgare L.) and malt". European Food Research and Technology. 214 (5): 388. doi:10.1007/s00217-002-0498-x. S2CID 84221785.
  13. ^ Kim, Ki-cheon; Kim, Jin-sook; Kang, Kyoung-ah; Kim, Jong-min; Hyun, Jin-won (2010). "Cytoprotective effects of catechin 7-O-β-D-glucopyranoside against mitochondrial dysfunction damaged by streptozotocin in RINm5F cells". Cell Biochemistry and Function. 28 (8): 651–660. doi:10.1002/cbf.1703. PMID 21104932. S2CID 205550585.
source: https://en.wikipedia.org/wiki/Catechin-7-O-glucoside

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