Tellimagrandin II

Tellimagrandin II is the first of the ellagitannins formed from 1,2,3,4,6-pentagalloyl-glucose. It can be found in Geum japonicum and Syzygium aromaticum (clove).^[1]

Tellimagrandin II

Chemical structure of tellimagrandin II
Names
Systematic IUPAC name (11aR,13S,14R,15S,15aR)-2,3,4,5,6,7-Hexahydroxy-9,17-dioxo-9,11,11a,13,14,15,15a,17-octahydrodibenzo[g,i]pyrano[3,2-b][1,5]dioxacycloundecine-13,14,15-triyl tris(2,3,4-trihydroxybenzoate)
Other names Tellimagrandin II Eugeniin
Identifiers
CAS Number	58970-75-5 Y=
3D model (JSmol)	Interactive image
ChEBI	CHEBI:4916 N
ChEMBL	ChEMBL450745 N
ChemSpider	391036
KEGG	C10224
PubChem CID	442679
InChI Key: JCGHAEBIBSEQAD-UUUCSUBKSA-N InChI=1S/C41H30O26/c42-15-1-10(2-16(43)26(15)50)36(57)65-34-33-23(9-62-39(60)13-7-21(48)29(53)31(55)24(13)25-14(40(61)64-33)8-22(49)30(54)32(25)56)63-41(67-38(59)12-5-19(46)28(52)20(47)6-12)35(34)66-37(58)11-3-17(44)27(51)18(45)4-11/h1-8,23,33-35,41-56H,9H2/t23-,33-,34+,35-,41+/m1/s1
SMILES C1C2C(C(C(C(O2)OC(=O)C3=CC(=C(C(=C3)O)O)O)OC(=O)C4=CC(=C(C(=C4)O)O)O)OC(=O)C5=CC(=C(C(=C5)O)O)O)OC(=O)C6=CC(=C(C(=C6C7=C(C(=C(C=C7C(=O)O1)O)O)O)O)O)O
Properties
Chemical formula	C41H30O26
Molar mass	938.66 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Tellimagrandin II is an isomer of punicafolin or nupharin A, but the hexahydroxydiphenoyl group is not attached to the same hydroxyl groups in the glucose molecule.

The compound shows anti-herpesvirus properties.^[1]

Metabolism

It is formed by oxidation of pentagalloyl glucose in Tellima grandiflora by the enzyme pentagalloylglucose: O(2) oxidoreductase, a laccase-type phenol oxidase.^[2]

It is further oxidized to casuarictin, a molecule formed via oxidative dehydrogenation of 2 other galloyl groups in Casuarina and Stachyurus species.^[3]

Dimerization

It is laccase-catalyzed dimerized to cornusiin E in Tellima grandiflora.^[4][5]

Uses

It has an extremely weak basic (essentially neutral) compound. The compound shows anti-herpesvirus properties.