Chalconoid

Natural phenols related to chalcone
Chalcone, the structural backbone of chalconoids

Chalconoids (Greek: χαλκός khalkós, "copper", due to its color), also known as chalcones, are natural phenols derived from chalcone. They form the central core for a variety of important biological compounds.

They show antibacterial, antifungal, antitumor and anti-inflammatory properties. Some chalconoids demonstrated the ability to block voltage-dependent potassium channels.[1] Chalcones are also natural aromatase inhibitors.[2]

Chalcones are aromatic ketones with two phenyl rings that are also intermediates in the synthesis of many biological compounds. The closure of hydroxy chalcones causes the formation of the flavonoid structure.[3] Flavonoids are substances in the plant's secondary metabolism with an array of biological activities.

Chalconoids are also intermediating in the Auwers synthesis of flavones.

Biosynthesis and metabolism

Chalcone synthase is an enzyme responsible for the production of chalconoids in plants.
Chalcone isomerase is responsible for their conversion into flavanones and other flavonoids.
Naringenin-chalcone synthase uses malonyl-CoA and 4-coumaroyl-CoA to produce CoA, naringenin chalcone, and CO2.
In aurones, the chalcone-like structure closes into a 5-atom ring instead of the more typical 6-atom ring (C ring).

Related compounds

References

  1. ^ Yarishkin, O. V.; Ryu, H. W.; Park, J. Y.; Yang, M. S.; Hong, S. G.; Park, K. H. (2008). "Sulfonate chalcone as new class voltage-dependent K+ channel blocker". Bioorganic & Medicinal Chemistry Letters. 18 (1): 137–140. doi:10.1016/j.bmcl.2007.10.114. PMID 18032041.
  2. ^ Le Bail, Jean-Christophe; Pouget, Christelle; Fagnere, Catherine; Basly, Jean-Philippe; Chulia, Albert-Jose; Habrioux, Gerard (2001). "Chalcones are potent inhibitors of aromatase and 17β-hydroxysteroid dehydrogenase activities". Life Sciences. 68 (7): 751–61. doi:10.1016/S0024-3205(00)00974-7. PMID 11205867.
  3. ^ Nayak, Yogeesha N.; Gaonkar, Santosh L.; Sabu, Mariya (2023-01-04). "Chalcones: Versatile intermediates in heterocyclic synthesis". Journal of Heterocyclic Chemistry: jhet.4617. doi:10.1002/jhet.4617. ISSN 0022-152X. S2CID 255212828.

External links

  • "Chalcones". Reference.MD. Archived from the original on 2020-09-25. Retrieved 2011-04-30.
  • v
  • t
  • e
Natural monophenols
Polyphenols
  • v
  • t
  • e
Types of polyphenols
Flavonoids
(C6-C3-C6)
  • v
  • t
  • e
Types of flavonoids
Flavonoids
Anthoxanthins
Flavones
Flavonols
Isoflavones
Neoflavonoids
Flavans
Flavan
  • Luteoliflavan
Flavan-3-ols
(flavanols)
Flavan-4-ols
(flavanols)
Flavan-3,4-diols
Flavanones
Flavanonols
Anthocyanidins
3-deoxyanthocyanidins
3-hydroxyanthocyanidin
Aurones
Chalcones
Chalcones
Dihydrochalcone
Miscellaneous
Flavonolignans
Lignans
((C6-C3)2)
Stilbenoids
(C6-C2-C6)
Curcuminoids
Tannins
  • v
  • t
  • e
Types of natural tannins
Hydrolysable tannins
Ellagitannins
Gallotannins
Condensed tannins
Phlorotannins
Flavono-ellagitannins
(complex tannins)
Other Miscellaneous
Others
Misc:
Aromatic acids
  • v
  • t
  • e
Phenolic acids
Monohydroxybenzoic acids
Aglycones
Glycosides
Dihydroxybenzoic acids
Trihydroxybenzoic acids
Other phenolic acids
Hydroxycinnamic acids
Aromatic amino acids
Phenylethanoids
Others
Misc:
  • v
  • t
  • e
Chalconoids and their glycosides
Chalconoids
Chalconoid glycosides
  • Carthamin
  • Marein
  • okanin 3,4,3′-trimethyl ether 4′-glucoside
  • okanin 4-methyl ether 4′-glucoside
  • okanin 4-methyl ether 4′-glucoside monoacetate
  • Okanin 3,4-dimethyl ether 4′-glucoside
Acylated chalconoids
O-methylated chalconoids
  • Cardamomin
  • Flavokawin B
  • Okanin 3,4,3′,4′-tetramethyl ether
  • Pashanone (2',6'-Dihydroxy-3',4'-dimethoxychalcone)
Flavokavains
Synthetic