Leucodelphinidin

Leucodelphinidin is a colorless chemical compound related to leucoanthocyanidins. It can be found in Acacia auriculiformis,[1] in the bark of Karada (Cleistanthus collinus) and in the kino (gum) from Eucalyptus pilularis.[2]

Leucodelphinidin

Names
IUPAC name (2R,3S,4S)-2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol
Other names leukoefdin Leucoefdin leucodelfinidin Leucoephdine Leukoephdin
Identifiers
CAS Number	12764-74-8
3D model (JSmol)	Interactive image
ChEBI	CHEBI:6417
ChemSpider	389679
KEGG	C05909
PubChem CID	440835
InChI InChI=1S/C15H14O8/c16-6-3-7(17)11-10(4-6)23-15(14(22)13(11)21)5-1-8(18)12(20)9(19)2-5/h1-4,13-22H/t13-,14-,15+/m0/s1 Key: ZEACOKJOQLAYTD-SOUVJXGZSA-N InChI=1/C15H14O8/c16-6-3-7(17)11-10(4-6)23-15(14(22)13(11)21)5-1-8(18)12(20)9(19)2-5/h1-4,13-22H/t13-,14-,15+/m0/s1 Key: ZEACOKJOQLAYTD-SOUVJXGZBJ
SMILES C1=C(C=C(C(=C1O)O)O)C2C(C(C3=C(C=C(C=C3O2)O)O)O)O
Properties
Chemical formula	C15H14O8
Molar mass	322.26 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Other species containing leucodelphinidin include Aesculus hippocastanum (Horse chestnut, in rind/bark/cortex), Arachis hypogaea (Earth nut in seeds), Arbutus unedo (Arbutus, in the leaf), Caesalpinia pulcherrima (Barbados pride), Ceratonia siliqua (Carob, in the fruit), Hamamelis virginiana (American witch hazel, in the leaf), Hippophae rhamnoides (Hippophae berry, in the leaf), Humulus lupulus (bine flower / blossom, in the leaf), Musa acuminata × balbisiana (Banana, in the fruit), Nelumbo nucifera (lotus, in the leaf), Phyllanthus emblica (Emblic, Indian gooseberry, in the rind/bark/cortex), Quercus alba (White oak, in the rind/bark/cortex), Quercus robur (Common oak, in the rind/bark/cortex), Rumex hymenosepalus (Arizona dock, in the root), Schinus molle (California peppertree, in the leaf) and Vicia faba (bell-bean, in the seed).[3]

A leucodelphinidin derivative isolated from Ficus bengalensis shows hypoglycemic effects.[4]

Metabolism

Dihydroflavonol 4-reductase (DFR) uses dihydromyricetin (ampelopsin) NADPH and 2 H⁺ to produce leucodelphinidin and NADP.[5][6]

References

1. A new flavan-3,4-diol from Acacia auriculiformis by paper ionophoresis, S. E. Drewes and D. G. Roux, 1966
2. A study of leucoanthocyanidins of plants—I : Isomers of leucodelphinidin from karada bark and eucalyptus gum, A. K. Ganguly, T. R. Seshadri and P. Subramanian
3. Leucodelphinidin on liberherbarum.com
4. Hypoglycemic effects of leucodelphinidin derivative isolated from Ficus bengalensis (Linn). B S Geetha, B C Mathew, K T Augusti, 1994
5. leucodelphinidin biosynthesis pathway proposed on biocyc.org
6. Les cibles d’amélioration pour la qualité des raisins: L’exemple des flavonoïdes, Nancy Terrier (French)