Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2012-09-11 20:58:15 UTC |
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Update Date | 2022-03-07 02:54:42 UTC |
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HMDB ID | HMDB0035922 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Nigakihemiacetal B |
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Description | Nigakihemiacetal B belongs to the class of organic compounds known as quassinoids. These are a group of compounds chemically degraded from triterpenes. According to their basic skeleton, quassinoids are categorized into five distinct groups, C-18, C-19, C-20, C-22 and C-25 types. The C-20 quassinoids can be further classified into two types, tetracyclic and the pentacyclic. The tetracyclic variety does not have oxygenation at C-20, while the pentacyclic quassinoids possess additional oxygenation at C-20 that allows for the formation of an additional ring. Based on a literature review a small amount of articles have been published on Nigakihemiacetal B. |
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Structure | COC1=CC(C)C2CC3OC(O)CC4C(C)=C(OC)C(=O)C(C34C)C2(C)C1=O InChI=1S/C22H30O6/c1-10-7-14(26-5)20(25)22(4)12(10)8-15-21(3)13(9-16(23)28-15)11(2)18(27-6)17(24)19(21)22/h7,10,12-13,15-16,19,23H,8-9H2,1-6H3 |
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Synonyms | Value | Source |
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16-Hydroxy-2,12-dimethoxy-picrasa-2,12-diene-1,11-dione | HMDB | Neoquassin | HMDB | Neoquassine | HMDB | Simalikahemiacetal a | HMDB |
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Chemical Formula | C22H30O6 |
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Average Molecular Weight | 390.47 |
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Monoisotopic Molecular Weight | 390.204238692 |
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IUPAC Name | 11-hydroxy-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,16-dione |
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Traditional Name | neoquassin |
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CAS Registry Number | 76-77-7 |
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SMILES | COC1=CC(C)C2CC3OC(O)CC4C(C)=C(OC)C(=O)C(C34C)C2(C)C1=O |
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InChI Identifier | InChI=1S/C22H30O6/c1-10-7-14(26-5)20(25)22(4)12(10)8-15-21(3)13(9-16(23)28-15)11(2)18(27-6)17(24)19(21)22/h7,10,12-13,15-16,19,23H,8-9H2,1-6H3 |
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InChI Key | BDQNCUODBJZKIY-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as quassinoids. These are a group of compounds chemically degraded from triterpenes. According to their basic skeleton, quassinoids are categorized into five distinct groups, C-18, C-19, C-20, C-22 and C-25 types. The C-20 quassinoids can be further classified into two types, tetracyclic and the pentacyclic. The tetracyclic variety does not have oxygenation at C-20, while the pentacyclic quassinoids possess additional oxygenation at C-20 that allows for the formation of an additional ring. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Terpene lactones |
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Direct Parent | Quassinoids |
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Alternative Parents | |
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Substituents | - Quassinoid
- Naphthopyran
- Naphthalene
- Cyclohexenone
- Oxane
- Pyran
- Ketone
- Hemiacetal
- Organoheterocyclic compound
- Oxacycle
- Hydrocarbon derivative
- Carbonyl group
- Organooxygen compound
- Organic oxide
- Organic oxygen compound
- Aliphatic heteropolycyclic compound
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Molecular Framework | Aliphatic heteropolycyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | |
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Disposition | |
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Process | |
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Role | |
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Physical Properties |
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State | Solid |
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Experimental Molecular Properties | |
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Experimental Chromatographic Properties | Not Available |
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Predicted Molecular Properties | |
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Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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Nigakihemiacetal B,1TMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C)CC4C(C)=C(OC)C(=O)C(C2(C)C1=O)C34C | 2969.4 | Semi standard non polar | 33892256 | Nigakihemiacetal B,1TMS,isomer #2 | COC1=CC(C)C2CC3OC(O)CC4C(C)=C(OC)C(O[Si](C)(C)C)=C(C2(C)C1=O)C34C | 2927.4 | Semi standard non polar | 33892256 | Nigakihemiacetal B,2TMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C)CC4C(C)=C(OC)C(O[Si](C)(C)C)=C(C2(C)C1=O)C34C | 2872.2 | Semi standard non polar | 33892256 | Nigakihemiacetal B,2TMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C)CC4C(C)=C(OC)C(O[Si](C)(C)C)=C(C2(C)C1=O)C34C | 2891.6 | Standard non polar | 33892256 | Nigakihemiacetal B,1TBDMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C(C)(C)C)CC4C(C)=C(OC)C(=O)C(C2(C)C1=O)C34C | 3201.0 | Semi standard non polar | 33892256 | Nigakihemiacetal B,1TBDMS,isomer #2 | COC1=CC(C)C2CC3OC(O)CC4C(C)=C(OC)C(O[Si](C)(C)C(C)(C)C)=C(C2(C)C1=O)C34C | 3139.5 | Semi standard non polar | 33892256 | Nigakihemiacetal B,2TBDMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C(C)(C)C)CC4C(C)=C(OC)C(O[Si](C)(C)C(C)(C)C)=C(C2(C)C1=O)C34C | 3311.5 | Semi standard non polar | 33892256 | Nigakihemiacetal B,2TBDMS,isomer #1 | COC1=CC(C)C2CC3OC(O[Si](C)(C)C(C)(C)C)CC4C(C)=C(OC)C(O[Si](C)(C)C(C)(C)C)=C(C2(C)C1=O)C34C | 3325.8 | Standard non polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - Nigakihemiacetal B GC-MS (Non-derivatized) - 70eV, Positive | splash10-07fr-0119000000-4970cc87b8b1a161cb15 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Nigakihemiacetal B GC-MS (1 TMS) - 70eV, Positive | splash10-0114-6206900000-6c3538d2fef74e9739fa | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Nigakihemiacetal B GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 10V, Positive-QTOF | splash10-0006-0009000000-64fade882e8aecbfe9e6 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 20V, Positive-QTOF | splash10-01ox-0019000000-4b3171d6bc60bbc63e59 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 40V, Positive-QTOF | splash10-0gdi-3295000000-c8277adab35eba9fa28b | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 10V, Negative-QTOF | splash10-000i-0009000000-d5eb7feace4bac5dd637 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 20V, Negative-QTOF | splash10-00dr-0009000000-bb40cd6adc919fc1366d | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 40V, Negative-QTOF | splash10-0006-5119000000-72a251218f6f5406c041 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 10V, Positive-QTOF | splash10-0006-0009000000-294bf30eb713df7a0ffc | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 20V, Positive-QTOF | splash10-01r6-0029000000-4ebfa900b814ba3606b8 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 40V, Positive-QTOF | splash10-0170-5689000000-73cde6621fc46139ceb0 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 10V, Negative-QTOF | splash10-000i-0009000000-433078b8e90dca07b359 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 20V, Negative-QTOF | splash10-000i-0009000000-181d9e94d6a73c70ec48 | 2021-09-22 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Nigakihemiacetal B 40V, Negative-QTOF | splash10-0ab9-0029000000-ab74ddf9b5a29986130c | 2021-09-22 | Wishart Lab | View Spectrum |
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