Menegazziaic acid
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| Category | Others |
| Catalog number | BBF-05492 |
| CAS | 61420-23-3 |
| Molecular Weight | 374.30 |
| Molecular Formula | C18H14O9 |
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Specification
| Synonyms | 1,4,11-trihydroxy-10-methoxy-5,8-dimethyl-7H-benzo[6,7][1,4]dioxepino[2,3-e]isobenzofuran-3,7(1H)-dione; 7H-Isobenzofuro[4,5-b][1,4]benzodioxepin-3,7(1H)-dione, 1,4,11-trihydroxy-10-methoxy-5,8-dimethyl-; Menegazziasaeure |
| IUPAC Name | 4,13,17-trihydroxy-5-methoxy-7,12-dimethyl-2,10,16-trioxatetracyclo[9.7.0.03,8.014,18]octadeca-1(11),3(8),4,6,12,14(18)-hexaene-9,15-dione |
| Canonical SMILES | CC1=CC(=C(C2=C1C(=O)OC3=C(O2)C4=C(C(=C3C)O)C(=O)OC4O)O)OC |
| InChI | InChI=1S/C18H14O9/c1-5-4-7(24-3)12(20)14-8(5)16(21)26-13-6(2)11(19)9-10(15(13)25-14)18(23)27-17(9)22/h4,18-20,23H,1-3H3 |
| InChI Key | CAIDWUCHPKFSPM-UHFFFAOYSA-N |
Properties
| Boiling Point | 744.5±60.0°C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
Reference Reading
1. Beta-orcinol depsidones from the lichen Usnea sp. from Sri Lanka
Selvaluxmy Kathirgamanathar, David E Williams, Raymond J Andersen, Karunananda Bombuwela, Dilip De Silva, Veranja Karunaratne Nat Prod Res. 2005 Oct;19(7):695-701. doi: 10.1080/14786410512331330639.
Two beta-orcinol depsidone lactones, the methyl ethers of menegazziaic acid and stictic acid were isolated along with glyceryl trilinolate and usnic acid from an Usnea sp. new to Sri Lanka growing on rotting trees of Acacia decurrans. Usnic acid exhibited potent antitermite activity against a common pest of tea, Glyptotermes dilatatus, at low elevations.
2. A new depsidone and antibacterial activities of compounds from Usnea undulata Stirton
Nasim Sultana, Anthony Jide Afolayan J Asian Nat Prod Res. 2011 Dec;13(12):1158-64. doi: 10.1080/10286020.2011.622720.
Usnea undulata Stirton (Usneaaceae) is a fruticose lichen used locally in ethnoveterinary medicine to treat mammary infections in cattle while human beings use it for the treatment of wounds in Eastern Cape, South Africa. Bioactivity-guided fractionation of its extracts led to the isolation and characterization of a new depsidone, 2'-O-methylhypostictic acid (8), together with seven known compounds, i.e. methyl β-orsellinate, norstictic acid, menegazziaic acid, (+) usnic acid, hypoconstictic acid, salazinic acid, and galbinic acid. The structures of the compounds were elucidated on the basis of their spectral analysis including homo- and hetero-nuclear correlation NMR experiments (COSY, NOESY, HMQC, and HMBC) and mass spectra as well as by comparison with available data in the literature. The minimum inhibitory concentrations (MICs) values of the compounds against six bacteria were determined. Compound 8 showed inhibitory activity against Bacillus cereus, Bacillus subtilis, and Staphylococcus epidermidis with MICs of 31, 62.5, 62.5 μg/ml, respectively. (+) Usnic acid was most active against B. subtilis, B. cereus, Staphylococcus aureus, and Escherichia coli with MICs of 8, 8, 31, and 31 μg/ml, respectively, while other compounds exhibited moderate activity.
3. NMR reassignment of stictic acid isolated from a Sumatran lichen Stereocaulon montagneanum (Stereocaulaceae) with superoxide anion scavenging activities
Friardi Ismed, Françoise Lohézic-Le Dévéhat, Isabelle Rouaud, Solenn Ferron, Amri Bakhtiar, Joël Boustie Z Naturforsch C J Biosci. 2017 Jan 1;72(1-2):55-62. doi: 10.1515/znc-2016-0148.
The phytochemical study of Stereocaulon montagneanum harvested in Sumatra (Indonesia) led to the isolation of 11 known compounds including two metabolites not previously described in the genus Stereocaulon, peristictic acid (8) and menegazziaic acid (10). The complete 1H and 13C NMR spectral assignments of stictic acid derivatives are reported with some revisions. Five depsidones belonging to the stictic acid chemosyndrome were superoxide anion scavengers as potent as ascorbic acid and with no toxicity on two human cell lines.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
