| Record Information |
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| Version | 2.0 |
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| Created at | 2022-03-17 20:55:10 UTC |
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| Updated at | 2022-03-17 20:55:10 UTC |
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| NP-MRD ID | NP0048355 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | Cucurbitacin E |
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| Description | Cucurbitacin E belongs to the class of organic compounds known as cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions. Cucurbitacin E is found in Bacopa monnieri , Begonia nantoensis, Bryonia alba , Bryonia dioica , Citrullus colocynthis , Ecballium elaterium , Iberis amara L. and Momordica charantia . Cucurbitacin E is an extremely weak basic (essentially neutral) compound (based on its pKa). |
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| Structure | CC(=O)OC(C)(C)\C=C\C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(C=C(O)C(=O)C4(C)C)C3(C)C(=O)CC12C InChI=1S/C32H44O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-14,19,21-22,25,34-35,39H,11,15-16H2,1-9H3/b13-12+ |
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| Synonyms | Not Available |
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| Chemical Formula | C32H44O8 |
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| Average Mass | 556.6870 Da |
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| Monoisotopic Mass | 556.30362 Da |
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| IUPAC Name | (3E)-6-{4,13-dihydroxy-1,6,6,11,15-pentamethyl-5,17-dioxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-3,7-dien-14-yl}-6-hydroxy-2-methyl-5-oxohept-3-en-2-yl acetate |
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| Traditional Name | cucurbitacin E |
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| CAS Registry Number | 18444-66-1 |
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| SMILES | CC(=O)OC(C)(C)\C=C\C(=O)C(C)(O)C1C(O)CC2(C)C3CC=C4C(C=C(O)C(=O)C4(C)C)C3(C)C(=O)CC12C |
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| InChI Identifier | InChI=1S/C32H44O8/c1-17(33)40-27(2,3)13-12-23(36)32(9,39)25-21(35)15-29(6)22-11-10-18-19(14-20(34)26(38)28(18,4)5)31(22,8)24(37)16-30(25,29)7/h10,12-14,19,21-22,25,34-35,39H,11,15-16H2,1-9H3/b13-12+ |
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| InChI Key | NDYMQXYDSVBNLL-OUKQBFOZSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| Not Available | | 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 cucurbitacins. These are polycyclic compounds containing the tetracyclic cucurbitane nucleus skeleton, 19-(10->9b)-abeo-10alanost-5-ene (also known as 9b-methyl-19-nor lanosta-5-ene), with a variety of oxygenation functionalities at different positions. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Steroids and steroid derivatives |
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| Sub Class | Cucurbitacins |
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| Direct Parent | Cucurbitacins |
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| Alternative Parents | |
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| Substituents | - Triterpenoid
- Cucurbitacin skeleton
- 22-oxosteroid
- 21-oxosteroid
- 20-hydroxysteroid
- Steroid ester
- 3-oxo-delta-1-steroid
- 3-oxosteroid
- 2-hydroxysteroid
- 16-hydroxysteroid
- Hydroxysteroid
- Oxosteroid
- 11-oxosteroid
- Delta-1-steroid
- Cyclohexenone
- Acyloin
- Cyclic alcohol
- Alpha-hydroxy ketone
- Tertiary alcohol
- Alpha,beta-unsaturated ketone
- Acryloyl-group
- Enone
- Cyclic ketone
- Secondary alcohol
- Carboxylic acid ester
- Ketone
- Carboxylic acid derivative
- Monocarboxylic acid or derivatives
- Enol
- Hydrocarbon derivative
- Carbonyl group
- Organic oxide
- Alcohol
- Organooxygen compound
- Organic oxygen compound
- Aliphatic homopolycyclic compound
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| Molecular Framework | Aliphatic homopolycyclic 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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