Benzopyrone may refer to either of two

ketone In organic chemistry, a ketone is a functional group with the structure R–C(=O)–R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group –C(=O)– (which contains a carbon-oxygen double bo ...

derivatives of

benzopyran Benzopyran is a polycyclic organic compound that results from the fusion of a benzene ring to a heterocyclic pyran ring. According to current IUPAC nomenclature, the name chromene used in previous recommendations is retained; however, systemati ...

which constitute the core skeleton of many flavonoid compounds: *

Chromone Chromone (or 1,4-benzopyrone) is a derivative of benzopyran with a substituted keto group on the pyran ring. It is an isomer of coumarin. Derivatives of chromone are collectively known as ''chromones''. Most, though not all, chromones are also ...

(1-benzopyran-4-one) *

Coumarin Coumarin () or 2''H''-chromen-2-one is an aromatic organic chemical compound with formula . Its molecule can be described as a benzene molecule with two adjacent hydrogen atoms replaced by a lactone-like chain , forming a second six-membered h ...

(1-benzopyran-2-one) Certain simple benzopyrones have clinical medical value as an edema modifiers.

and other benzopyrones, such as 5,6 benzopyrone, 1,2 benzopyrone,

diosmin Diosmin (diosmetin 7-O-rutinoside), a flavone glycoside of diosmetin, is manufactured from citrus fruit peels as a phlebotonic non-prescription dietary supplement used to aid treatment of hemorrhoids or chronic venous diseases, mainly of the le ...

and others are known to stimulate macrophages to degrade extracellular albumin, allowing faster resorption of edematous fluids.Review of benzypyrone drugs and edema
/ref> Naturally occurring coumarin is also the basis for various 4-hydroxybenzopyrone-based molecules which occur naturally

dicoumarol Dicoumarol ( INN) or dicumarol (USAN) is a naturally occurring anticoagulant drug that depletes stores of vitamin K (similar to warfarin, a drug that dicoumarol inspired). It is also used in biochemical experiments as an inhibitor of reductases. ...

and are made synthetically

warfarin Warfarin, sold under the brand name Coumadin among others, is a medication that is used as an anticoagulant (blood thinner). It is commonly used to prevent blood clots such as deep vein thrombosis and pulmonary embolism, and to prevent strok ...

and function as anticoagulants.

References

{{reflist Benzopyrans