Davallialactone

Davallialactone
Names
	IUPAC name (4Z)-3-(3,4-Dihydroxyphenyl)-6-[(E)-2-(3,4-dihydroxyphenyl)ethenyl]-8-hydroxy-4-(2-oxopropylidene)-3,3a-dihydrofuro[3,4-c]oxepin-1-one
Identifiers
CAS Number	133360-41-5;
3D model (JSmol)	Interactive image;
ChemSpider	23269604;
PubChem CID	54711171;
	InChI InChI=1S/C25H20O9/c1-12-8-20(30)22(24(33-12)14-4-7-17(27)19(29)10-14)23-21(31)11-15(34-25(23)32)5-2-13-3-6-16(26)18(28)9-13/h2-11,22,24,26-29,31H,1H3/b5-2+/t22-,24-/m1/s1 Key: KYFXISLAEBFZFO-NJPHHMIOSA-N; InChI=1/C25H20O9/c1-12-8-20(30)22(24(33-12)14-4-7-17(27)19(29)10-14)23-21(31)11-15(34-25(23)32)5-2-13-3-6-16(26)18(28)9-13/h2-11,22,24,26-29,31H,1H3/b5-2+/t22-,24-/m1/s1 Key: KYFXISLAEBFZFO-NJPHHMIOBO;
	SMILES CC(=O)/C=C\1/C2C(OC(=O)C2=C(C=C(O1)/C=C/C3=CC(=C(C=C3)O)O)O)C4=CC(=C(C=C4)O)O;
Properties
Chemical formula	C25H20O9
Molar mass	464.426 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Davallialactone is a bio-active hispidin analog isolated from fungi in the genus Inonotus.^[1]

References

^ Risal, P; Hwang, PH; Yun, BS; Yi, HK; Cho, BH; Jang, KY; Jeong, YJ (2012). "Hispidin analogue davallialactone attenuates carbon tetrachloride-induced hepatotoxicity in mice". Journal of Natural Products. 75 (10): 1683–9. doi:10.1021/np300099a. PMID 23025331.