Butein

Butein is a chalcone of the chalconoids. It can be found in Toxicodendron vernicifluum (or formerly Rhus verniciflua), Dahlia, Butea (Butea monosperma) and Coreopsis[1] It has antioxidative, aldose reductase and advanced glycation endproducts inhibitory effects.[2] It is also a sirtuin-activating compound, a chemical compound having an effect on sirtuins, a group of enzymes that use NAD⁺ to remove acetyl groups from proteins. Buteins possess a high ability to inhibit aromatase process in the human body, for this reason, the use of these compounds in the treatment of breast cancer on the estrogen ground has been explored.[3] The first attempts of sport pro-hormone supplementation with the use of buteins took place in Poland.[4]

Butein

Names
Preferred IUPAC name (2E)-1-(2,4-Dihydroxyphenyl)-3-(3,4-dihydroxyphenyl)prop-2-en-1-one
Other names 2',3,4,4'-Tetrahydroxychalcone 2',4',3,4-Tetrahydroxychalcone 3,4,2',4'-Tetrahydroxychalcone 2′,4′,3,4-Tetrahydroxychalcone
Identifiers
CAS Number	487-52-5^Y 21849-70-7^Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL128000^Y
ChemSpider	4444634^Y
ECHA InfoCard	100.006.963
PubChem CID	5281222
UNII	4WVS5M0LGF^Y
InChI InChI=1S/C15H12O5/c16-10-3-4-11(14(19)8-10)12(17)5-1-9-2-6-13(18)15(20)7-9/h1-8,16,18-20H/b5-1+^Y Key: AYMYWHCQALZEGT-ORCRQEGFSA-N^Y InChI=1/C15H12O5/c16-10-3-4-11(14(19)8-10)12(17)5-1-9-2-6-13(18)15(20)7-9/h1-8,16,18-20H/b5-1+ Key: AYMYWHCQALZEGT-ORCRQEGFBV
SMILES C1=CC(=C(C=C1C=CC(=O)C2=C(C=C(C=C2)O)O)O)O
Properties
Chemical formula	C15H12O5
Molar mass	272.25 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

References

1. Semwal, R. B., Semwal, D. K., Combrinck, S., & Viljoen, A. (2015). Butein: From ancient traditional remedy to modern nutraceutical. Phytochemistry Letters, 11, 188-201. doi:10.1016/j.phytol.2014.12.014
2. Lee EH, Song DG, Lee JY, Pan CH, Um BH, Jung SH (August 2008). "Inhibitory effect of the compounds isolated from Rhus verniciflua on aldose reductase and advanced glycation endproducts". Biol. Pharm. Bull. 31 (8): 1626–30. doi:10.1248/bpb.31.1626. PMID 18670102.
3. Wang Y. "The plant polyphenol butein inhibits testosterone-induced proliferation in breast cancer cells expressing aromatase" Life Sci. 2005 May 20;77(1):39-51.
4. S.Amboziak "Aromatase in the dock" 09.2012