Nupharin A is an ellagitannin found in ''

Nuphar japonica ''Nuphar japonica'', known as East Asian yellow water-lily, is an aquatic plant species in the genus ''Nuphar'' found in Japan and the Korean Peninsula. It is endangered in Russia. The species was not accepted by The Plant List , which regarded i ...

''.Tannins and Related Compounds. LXXV. : Isolation and Characterization of Novel Diastereoisomeric Ellagitannins, Nupharins A and B, and Their Homologues from Nuphar japonicum DC. Chemical & Pharmaceutical Bulletin, 25 January 1989, volume 37, issue 1, pages 129-134
abstract
It is a molecule with three

gallic acid Gallic acid (also known as 3,4,5-trihydroxybenzoic acid) is a trihydroxybenzoic acid with the formula C6 H2( OH)3CO2H. It is classified as a phenolic acid. It is found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. It i ...

units and one

hexahydroxydiphenic acid Hexahydroxydiphenic acid is an organic compound with the formula HO)3C6HCO2Hsub>2. It is the oxidatively coupled derivative of gallic acid It is a white solid, although samples are typically brown owing to oxidation. left, 142px, Ellagic acid. ...

unit attached to a glucose residue. It is an isomer of

punicafolin Punicafolin is an ellagitannin from the leaves of ''Punica granatum'' (pomegranate) and in ''Phyllanthus emblica''. Punicafolin is an isomer of tellimagrandin II and nupharin A, but the hexahydroxydiphenoyl Hexahydroxydiphenic acid is an organ ...

and

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).Purification and Characterization of Eugeniin as an Anti-herpesvirus Compoun ...

References

Ellagitannins {{aromatic-stub