| Record Information |
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| Version | 2.0 |
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| Created at | 2022-09-03 23:23:32 UTC |
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| Updated at | 2022-09-03 23:23:32 UTC |
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| NP-MRD ID | NP0184298 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | 8-benzoyl-2-(1,2-dihydroxyhex-3-en-1-yl)-6,9-dihydroxy-8-methoxy-3-methyl-1-oxa-7-azaspiro[4.4]nona-2,6-dien-4-one |
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| Description | Pseurotin A belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. While it is unknown how the azaspirocyclic core of the pseurotin family of natural products is made, the post polyketide synthase modifications are known. Pseurotin A is a secondary metabolite of Aspergillus. Pseurotin A is an extremely weak basic (essentially neutral) compound (based on its pKa). PsoC codes for a methyltransferase, which methylates the tertiary alcohol closest to the benzoyl moiety on C8. This epoxide is spontaneously hydrolyzed by either an SN2 mechanism to form pseurotin A, or by an SN2’ mechanism to form pseurotin D. PsoD codes for a cytochrome P450, which is responsible for oxidizing the benzyl carbon (C17) to the conjugated ketone. PsoF is unique in that its gene is encoded separate from the pseurotin gene cluster and is responsible for the epoxidation of the trans double bond that remains in the tail. PsoE is predicted to be a glutathione S-transferase gene, and isomerizes the CC bond furthest down the tail from the E stereoisomer to the Z stereoisomer. 8-benzoyl-2-(1,2-dihydroxyhex-3-en-1-yl)-6,9-dihydroxy-8-methoxy-3-methyl-1-oxa-7-azaspiro[4.4]nona-2,6-dien-4-one is found in Aspergillus fumigatus, Aspergillus insulicola and Penicillium canescens. In-vivo and in-vitro studies showed the unique mechanism involved in the modification ezymes PsoC, PsoD, PsoE, and PsoF. |
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| Structure | CCC=CC(O)C(O)C1=C(C)C(=O)C2(O1)C(O)C(NC2=O)(OC)C(=O)C1=CC=CC=C1 InChI=1S/C22H25NO8/c1-4-5-11-14(24)15(25)16-12(2)17(26)21(31-16)19(28)22(30-3,23-20(21)29)18(27)13-9-7-6-8-10-13/h5-11,14-15,19,24-25,28H,4H2,1-3H3,(H,23,29) |
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| Synonyms | | Value | Source |
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| Pseurotin | MeSH | | Pseurotin a | MeSH |
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| Chemical Formula | C22H25NO8 |
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| Average Mass | 431.4410 Da |
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| Monoisotopic Mass | 431.15802 Da |
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| IUPAC Name | 8-benzoyl-2-(1,2-dihydroxyhex-3-en-1-yl)-9-hydroxy-8-methoxy-3-methyl-1-oxa-7-azaspiro[4.4]non-2-ene-4,6-dione |
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| Traditional Name | 8-benzoyl-2-(1,2-dihydroxyhex-3-en-1-yl)-9-hydroxy-8-methoxy-3-methyl-1-oxa-7-azaspiro[4.4]non-2-ene-4,6-dione |
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| CAS Registry Number | Not Available |
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| SMILES | CCC=CC(O)C(O)C1=C(C)C(=O)C2(O1)C(O)C(NC2=O)(OC)C(=O)C1=CC=CC=C1 |
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| InChI Identifier | InChI=1S/C22H25NO8/c1-4-5-11-14(24)15(25)16-12(2)17(26)21(31-16)19(28)22(30-3,23-20(21)29)18(27)13-9-7-6-8-10-13/h5-11,14-15,19,24-25,28H,4H2,1-3H3,(H,23,29) |
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| InChI Key | SLYDIPAXCVVRNY-UHFFFAOYSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as alkyl-phenylketones. These are aromatic compounds containing a ketone substituted by one alkyl group, and a phenyl group. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbonyl compounds |
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| Direct Parent | Alkyl-phenylketones |
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| Alternative Parents | |
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| Substituents | - Alkyl-phenylketone
- Benzoyl
- Aryl alkyl ketone
- Monocyclic benzene moiety
- 3-furanone
- Pyrrolidone
- 2-pyrrolidone
- Benzenoid
- Dihydrofuran
- Pyrrolidine
- Vinylogous ester
- Carboxamide group
- Lactam
- Secondary alcohol
- Secondary carboxylic acid amide
- Oxacycle
- Carboxylic acid derivative
- Azacycle
- Organoheterocyclic compound
- Organonitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Alcohol
- Organic nitrogen compound
- Organopnictogen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic compounds |
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| External Descriptors | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Predicted Properties | |
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