Quadrangularin A

Quadrangularin A
Names
	Preferred IUPAC name (1E,2R,3R)-2-(3,5-Dihydroxyphenyl)-3-(4-hydroxyphenyl)-1-[(4-hydroxyphenyl)methylidene]indene-4,6-diol
	Other names (±)-Quadrangularin A
Identifiers
CAS Number	252557-25-8;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:76192;
ChemSpider	4476724;
PubChem CID	5318096;
	InChI InChI=1S/C28H22O6/c29-18-5-1-15(2-6-18)9-23-24-13-22(33)14-25(34)28(24)27(16-3-7-19(30)8-4-16)26(23)17-10-20(31)12-21(32)11-17/h1-14,26-27,29-34H/b23-9-/t26-,27+/m1/s1 Key: BIQMSWPBPAKGSE-PBSLAQMISA-N;
	SMILES C1=CC(=CC=C1C=C2C(C(C3=C(C=C(C=C23)O)O)C4=CC=C(C=C4)O)C5=CC(=CC(=C5)O)O)O;
Properties
Chemical formula	C28H22O6
Molar mass	454.478 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

Quadrangularin A is an oligostilbene found in Cissus quadrangularis^[1] and in Parthenocissus laetevirens.^[2] It is a resveratrol dimer.

References

^ Li, Wenling; Li, Hao; Li, Ying; Hou, Zijie (2006). "Total Synthesis of (±)-Quadrangularin A". Angewandte Chemie International Edition. 45 (45): 7609–7611. doi:10.1002/anie.200603097. PMID 17051632.
^ Chen, Juanjuan; He, Shan; Mao, Hui; Sun, Cuirong; Pan, Yuanjiang (2009). "Characterization of polyphenol compounds from the roots and stems of Parthenocissus laetevirensby high-performance liquid chromatography/Tandem mass spectrometry". Rapid Communications in Mass Spectrometry. 23 (6): 737–744. Bibcode:2009RCMS...23..737C. doi:10.1002/rcm.3937. PMID 19204932.

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