Sakuranetin

Sakuranetin is a flavan-on, the 7-methoxy derivative of naringenin, found in Polymnia fruticosa[1] and rice, where it acts as a phytoalexin against spore germination of Pyricularia oryzae.[2]

Sakuranetin

Names
IUPAC name (2S)-5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-2,3-dihydrochromen-4-one
Other names 4',5-Dihydroxy-7-methoxyflavanone Naringenin 7-methyl ether
Identifiers
CAS Number	2957-21-3
3D model (JSmol)	Interactive image
ChEBI	CHEBI:28927
ChEMBL	ChEMBL448297
ChemSpider	66249
ECHA InfoCard	100.019.073
IUPHAR/BPS	412
PubChem CID	73571
UNII	3O38P61299
CompTox Dashboard (EPA)	DTXSID10874774
InChI InChI=1S/C16H14O5/c1-20-11-6-12(18)16-13(19)8-14(21-15(16)7-11)9-2-4-10(17)5-3-9/h2-7,14,17-18H,8H2,1H3/t14-/m0/s1 Key: DJOJDHGQRNZXQQ-AWEZNQCLSA-N InChI=1/C16H14O5/c1-20-11-6-12(18)16-13(19)8-14(21-15(16)7-11)9-2-4-10(17)5-3-9/h2-7,14,17-18H,8H2,1H3/t14-/m0/s1 Key: DJOJDHGQRNZXQQ-AWEZNQCLBK
SMILES COC1=CC(=C2C(=O)CC(OC2=C1)C3=CC=C(C=C3)O)O
Properties
Chemical formula	C16H14O5
Molar mass	286.27 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

Glycosides

Sakuranin is the 5-O-glucoside of sakuranetin.

Metabolism

biosynthesis

Naringenin 7-O-methyltransferase uses naringenin to yield sakuranetin, with S-adenosyl-methionine as the methyl donor.[3]

biodegradation

In compounds like 7-methoxylated flavanones like sakuranetin, demethylation followed by sulfation occur in model organism Cunninghamella elegans.[4]

References

1. Sakuranetin on home.ncifcrf.gov
2. Sakuranetin, a flavonone phytoalexin from ultraviolet-irradiated rice leaves, Kodama O., Miyakawa J., Akatsuka T., Kiyosawa S, 1992
3. A Methyltransferase for Synthesis of the Flavanone Phytoalexin Sakuranetin in Rice Leaves, Randeep Rakwala, Morifumi Hasegawab and Osamu Kodama, 1996
4. Ibrahim, A. R.; Galal, A. M.; Ahmed, M. S.; Mossa, G. S. (2003). "O-demethylation and sulfation of 7-methoxylated flavanones by Cunninghamella elegans". Chemical & Pharmaceutical Bulletin. 51 (2): 203–206. doi:10.1248/cpb.51.203. PMID 12576658. INIST:14569933.