3-Epi-Radicinol
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| Category | Others |
| Catalog number | BBF-05519 |
| CAS | 65700-75-6 |
| Molecular Weight | 238.24 |
| Molecular Formula | C12H14O5 |
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Specification
| Synonyms | 2H,5H-Pyrano[4,3-b]pyran-5-one, 3,4-dihydro-3,4-dihydroxy-2-methyl-7-(1E)-1-propen-1-yl-, (2S,3R,4R)-; epi-3-Radicinol; (2S,3R,4R)-3,4-dihydroxy-2-methyl-7-((E)-prop-1-en-1-yl)-3,4-dihydro-2H,5H-pyrano[4,3-b]pyran-5-one |
| IUPAC Name | (2S,3R,4R)-3,4-dihydroxy-2-methyl-7-[(E)-prop-1-enyl]-3,4-dihydro-2H-pyrano[3,2-c]pyran-5-one |
| Canonical SMILES | CC=CC1=CC2=C(C(C(C(O2)C)O)O)C(=O)O1 |
| InChI | InChI=1S/C12H14O5/c1-3-4-7-5-8-9(12(15)17-7)11(14)10(13)6(2)16-8/h3-6,10-11,13-14H,1-2H3/b4-3+/t6-,10-,11+/m0/s1 |
| InChI Key | RMDHRYWEFJLSJF-DUKVTVORSA-N |
Properties
| Boiling Point | 438.8±45.0°C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
Reference Reading
1. Phytotoxic Activity and Structure-Activity Relationships of Radicinin Derivatives against the Invasive Weed Buffelgrass ( Cenchrus ciliaris)
Marco Masi, Fabrizio Freda, Suzette Clement, Alessio Cimmino, Massimo Cristofaro, Susan Meyer, Antonio Evidente Molecules. 2019 Jul 31;24(15):2793. doi: 10.3390/molecules24152793.
Radicinin (1), is a fungal dihydropyranopyran-4,5-dione isolated together with some analogues, namely 3-epi-radicinin, radicinol, 3-epi-radicinol, and cochliotoxin (2-5), from the culture filtrates of the fungus Cochliobolus australiensis, a foliar pathogen of buffelgrass (Cenchrus ciliaris), an invasive weed in North America. Among the different metabolites 1 showed target-specific activity against the host plant and no toxicity on zebrafish embryos, promoting its potential use to develop a natural bioherbicide formulation to manage buffelgrass. These data and the peculiar structural feature of 1 suggested to carry out a structure-activity relationship study, preparing some key hemisynthetic derivatives and to test their phytotoxicity. In particular, p-bromobenzoyl, 5-azidopentanoyl, stearoyl, mesyl and acetyl esters of radicinin were semisynthesized as well as the monoacetyl ester of 3-epi-radicinin, the diacetyl esters of radicinol and its 3 epimer, and two hexa-hydro derivatives of radicinin. The spectroscopic characterization and the activity by leaf puncture bioassay against buffelgrass of all the derivatives is reported. Most of the compounds showed phytotoxicity but none of them had comparable or higher activity than radicinin. Thus, the presence of an α,β unsaturated carbonyl group at C-4, as well as, the presence of a free secondary hydroxyl group at C-3 and the stereochemistry of the same carbon proved to be the essential feature for activity.
2. Cochliotoxin, a Dihydropyranopyran-4,5-dione, and Its Analogues Produced by Cochliobolus australiensis Display Phytotoxic Activity against Buffelgrass (Cenchrus ciliaris)
Marco Masi, Susan Meyer, Suzette Clement, Alessio Cimmino, Massimo Cristofaro, Antonio Evidente J Nat Prod. 2017 May 26;80(5):1241-1247. doi: 10.1021/acs.jnatprod.6b00696. Epub 2017 Apr 19.
Buffelgrass (Pennisetum ciliare or Cenchrus ciliaris) is a perennial grass that has become highly invasive in the Sonoran Desert of southern Arizona. In the search for novel control strategies against this weed, strains of the foliar fungal pathogen Cochliobolus australiensis from buffelgrass have been screened for their ability to produce phytotoxic metabolites that could potentially be used as natural herbicides in an integrated pest management strategy. A new phytotoxin, named cochliotoxin, was isolated from liquid culture of this fungus together with radicinin, radicinol, and their 3-epimers. Cochliotoxin was characterized, essentially by spectroscopic methods, as 3-hydroxy-2-methyl-7-(3-methyloxiranyl)-2,3-dihydropyrano[4,3-b]pyran-4,5-dione. Its relative stereochemistry was assigned by 1H NMR techniques, while the absolute configuration (2S,3S) was determined applying the advanced Mosher's method by esterification of its hydroxy group at C-3. When bioassayed in a buffelgrass coleoptile elongation test and by leaf puncture bioassay against the host weed and two nontarget grasses, cochliotoxin showed strong phytotoxicity. In the same tests, radicinin and 3-epi-radicinin also showed phytotoxic activity, while radicinol and 3-epi-radicinol were largely inactive. All five compounds were more active in leaf puncture bioassays on buffelgrass than on the nontarget grass tanglehead (Heteropogon contortus), while the nontarget grass Arizona cottontop (Digitaria californica) was more sensitive to radicinin and 3-epi-radicinin. Cochliotoxin at low concentration was significantly more active on buffelgrass than on either native grass, but the difference was small.
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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 ╳
