Sanguisorbic acid

Sanguisorbic acid
Names

Preferred IUPAC name 3-(5-Carboxy-2,3-dihydroxyphenoxy)-4,4′,5,5′,6,6′-hexahydroxy[1,1′-biphenyl]-2,2′-dicarboxylic acid
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	28190826
PubChem CID	12444662
CompTox Dashboard (EPA)	DTXSID801030309
InChI InChI=1S/C21H14O15/c22-6-1-4(19(30)31)2-8(12(6)24)36-18-11(21(34)35)10(15(27)16(28)17(18)29)9-5(20(32)33)3-7(23)13(25)14(9)26/h1-3,22-29H,(H,30,31)(H,32,33)(H,34,35) Key: IGSQOFHPQLBLHF-UHFFFAOYSA-N InChI=1/C21H14O15/c22-6-1-4(19(30)31)2-8(12(6)24)36-18-11(21(34)35)10(15(27)16(28)17(18)29)9-5(20(32)33)3-7(23)13(25)14(9)26/h1-3,22-29H,(H,30,31)(H,32,33)(H,34,35) Key: IGSQOFHPQLBLHF-UHFFFAOYAB
SMILES Oc2c(c(c(Oc1cc(cc(O)c1O)C(=O)O)c(O)c2O)C(=O)O)c3c(cc(O)c(O)c3O)C(=O)O
Properties
Chemical formula	C₂₁H₁₄O₁₅
Molar mass	506.33 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

Sanguisorbic acid is a constituent of some ellagitannins. It is constituted by a hexahydroxydiphenic acid unit linked by an O-C bond to a gallic acid. The differences with its isomers, valoneic acid and nonahydroxytriphenic acid, are that the hydroxyl that links the hexahydroxydiphenoyl (HHDP) group to the galloyl group belongs to the galloyl group in valoneic acid, while in nonahydroxytriphenic acid, the hexahydroxydiphenic acid unit is linked by a C-C bond to gallic acid.

It is found in 2,3-O-hexahydroxydiphenoyl-4,6-O-sanguisorboyl-(α/β)-glucose, an ellagitannin found in Rubus sanctus.^[1] It is also found in lambertianin A, B, C and D, all ellagitannins found in Rubus lambertianus.^[2]

References

^ Hussein, Sahar A.M; Ayoub, Nahla A; Nawwar, Mahmoud A.M (2003). "Caffeoyl sugar esters and an ellagitannin from Rubus sanctus". Phytochemistry. 63 (8): 905–11. Bibcode:2003PChem..63..905H. doi:10.1016/S0031-9422(03)00331-5. PMID 12895538.
^ Tanaka, T; Tachibana, H; Nonaka, G; Nishioka, I; Hsu, FL; Kohda, H; Tanaka, O (1993). "Tannins and related compounds. CXXII. New dimeric, trimeric and tetrameric ellagitannins, lambertianins A-D, from Rubus lambertianus Seringe". Chemical & Pharmaceutical Bulletin. 41 (7): 1214–20. doi:10.1248/cpb.41.1214. PMID 8374992.

External links

Plant polyphenols: vegetable tannins revisited by Edwin Haslam, page 136

Types of ellagitannins

Moieties

Diphenolic acid : Hexahydroxydiphenic acid (HHDP)
Triphenolic acids : Nonahydroxytriphenic acid
Sanguisorbic acid
Valoneic acid
Tetraphenolic acids : Isoterchebulic acid
Terchebulinic acid

Lactones

Ellagic acid
Gallagic acid
Gallagic acid dilactone
Luteic acid
Sanguisorbic acid dilactone
Valoneic acid dilactone

Monomers

Acetonyl geraniin
Alnusiin
Bicornin
Carlesiin
Casuarictin
Emblicanin A and B
Euscaphinin
Galloyl pedunculagin
Grandinin
Helioscopinin B
Jolkinin
Lagerstannin A, B and C
Macranganin
Myrobalanitannin
Nupharin A, B, C, D, E and F
Pedunculagin
Punicalagin
Punigluconin
Phyllanemblinin A, B, C, D, E and F
Punicalin
Roburin E
Rugosin E
Sanguiin H-5
Stenophyllanin A, B and C
Strictinin
Tellimagrandin I and II
Teracatain
Terchebulin
Terflavin A and B
Tergallic acid
Tergallic acid dilactone

C-glycosidic ellagitannins

Castalagin (Vescalagin)
Castalin
Casuariin
Casuarinin
Punicacortein A, B, C and D

Dehydroellagitannins (molecules with
dehydrohexahydroxydiphenic acid (DHHDP)

Alnicortin
Euphorbin A
Euphorscopin
Excoecarianin
Geraniin
Granatin A and B
Helioscopinin A
Mallotusinic acid
Supinanin
Terchebin

Transformed ellagitannins

molecules with chebulic acid	Chebulagic acid Chebulinic acid
molecules with Elaeocarpusinic acid	Elaeocarpusin Helioscopin B Mallojaponin (1-O-Galloyl-2,4-elaeocarpusinoyl-3,6-(R)-valoneayl-beta-D-glucose)