Record Information |
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Version | 5.0 |
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Status | Expected but not Quantified |
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Creation Date | 2013-05-17 01:26:04 UTC |
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Update Date | 2021-09-14 15:42:58 UTC |
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HMDB ID | HMDB0060510 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | SN-38 |
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Description | 7-Ethyl-10-hydroxycamptothecin (SN38) is the active metabolite of irinotecan (an analog of camptothecin - a topoisomerase I inhibitor); it is 1000 times more active than irinotecan itself. In vitro cytotoxicity assays show that the potency of SN-38 relative to irinotecan varies from 2- to 2000-fold. SN38 is metabolized via glucoronidation by UGT1A1. (Wikipedia ) 7-Ethyl-10-hydroxycamptothecin (SN38), the active metabolite of irinotecan, exerts a 100-fold to 1000-fold higher effect than irinotecan itself against several tumor cell lines. (PMID: 23233044 ) Among five chemotherapeutic agents commonly used for breast cancer treatment, only an irinotecan metabolite SN38 showed additive antitumor activity with olaparib. (PMID: 22454224 ) Metabolism of irinotecan to SN38 is inefficient and subject to considerable patient-to-patient variability. One approach to more controlled administration of the anticancer agent is direct administration of the active SN38. (PMID: 23299391 ) |
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Structure | CCC1=C2C=C(O)C=CC2=NC2=C1CN1C2=CC2=C(COC(=O)[C@]2(O)CC)C1=O InChI=1S/C22H20N2O5/c1-3-12-13-7-11(25)5-6-17(13)23-19-14(12)9-24-18(19)8-16-15(20(24)26)10-29-21(27)22(16,28)4-2/h5-8,25,28H,3-4,9-10H2,1-2H3/t22-/m0/s1 |
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Synonyms | Value | Source |
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10-Hydroxy-7-ethylcamptothecin | ChEBI | 7-Ethyl-10-hydroxy-20(S)-camptothecin | ChEBI | 7-Ethyl-10-hydroxycamptothecin | ChEBI | sn 38 | ChEBI | sn 38 Lactone | ChEBI | CPT 11 | HMDB | Camptosar | HMDB | Irrinotecan | HMDB | Camptothecin-11 | HMDB | Irinotecan hydrochloride | HMDB | CPT-11 | HMDB | sn38 CPD | HMDB | Irinotecan | HMDB | NK012 Compound | HMDB | CPT11 | MeSH | 7 Ethyl 10 hydroxycamptothecin | MeSH | Camptothecin 11 | MeSH |
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Chemical Formula | C22H20N2O5 |
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Average Molecular Weight | 392.4046 |
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Monoisotopic Molecular Weight | 392.13722176 |
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IUPAC Name | (19S)-10,19-diethyl-7,19-dihydroxy-17-oxa-3,13-diazapentacyclo[11.8.0.0²,¹¹.0⁴,⁹.0¹⁵,²⁰]henicosa-1(21),2(11),3,5,7,9,15(20)-heptaene-14,18-dione |
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Traditional Name | 7-ethyl-10-hydroxycamptothecin |
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CAS Registry Number | Not Available |
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SMILES | CCC1=C2C=C(O)C=CC2=NC2=C1CN1C2=CC2=C(COC(=O)[C@]2(O)CC)C1=O |
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InChI Identifier | InChI=1S/C22H20N2O5/c1-3-12-13-7-11(25)5-6-17(13)23-19-14(12)9-24-18(19)8-16-15(20(24)26)10-29-21(27)22(16,28)4-2/h5-8,25,28H,3-4,9-10H2,1-2H3/t22-/m0/s1 |
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InChI Key | FJHBVJOVLFPMQE-QFIPXVFZSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as camptothecins. These are heterocyclic compounds comprising a planar pentacyclic ring structure, that includes a pyrrolo[3,4-beta]-quinoline moiety (rings A, B and C), conjugated pyridone moiety (ring D) and one chiral center at position 20 within the alpha-hydroxy lactone ring with (S) configuration (the E-ring). |
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Kingdom | Organic compounds |
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Super Class | Alkaloids and derivatives |
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Class | Camptothecins |
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Sub Class | Not Available |
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Direct Parent | Camptothecins |
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Alternative Parents | |
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Substituents | - Camptothecin
- Hydroxyquinoline
- Pyranopyridine
- Quinoline
- 1-hydroxy-2-unsubstituted benzenoid
- Pyridinone
- Pyridine
- Benzenoid
- Heteroaromatic compound
- Tertiary alcohol
- Carboxylic acid ester
- Lactam
- Lactone
- Azacycle
- Organoheterocyclic compound
- Carboxylic acid derivative
- Oxacycle
- Monocarboxylic acid or derivatives
- Organic nitrogen compound
- Alcohol
- Organic oxygen compound
- Carbonyl group
- Organonitrogen compound
- Organooxygen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Aromatic heteropolycyclic compound
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Molecular Framework | Aromatic heteropolycyclic compounds |
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External Descriptors | |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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Role | Not Available |
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Physical Properties |
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State | Not Available |
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Experimental Molecular 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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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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SN-38,1TMS,isomer #1 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@]4(O)CC)C3=O)C2=NC2=CC=C(O[Si](C)(C)C)C=C12 | 3592.1 | Semi standard non polar | 33892256 | SN-38,1TMS,isomer #2 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@@]4(CC)O[Si](C)(C)C)C3=O)C2=NC2=CC=C(O)C=C12 | 3562.9 | Semi standard non polar | 33892256 | SN-38,2TMS,isomer #1 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@@]4(CC)O[Si](C)(C)C)C3=O)C2=NC2=CC=C(O[Si](C)(C)C)C=C12 | 3538.1 | Semi standard non polar | 33892256 | SN-38,1TBDMS,isomer #1 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@]4(O)CC)C3=O)C2=NC2=CC=C(O[Si](C)(C)C(C)(C)C)C=C12 | 3808.4 | Semi standard non polar | 33892256 | SN-38,1TBDMS,isomer #2 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@@]4(CC)O[Si](C)(C)C(C)(C)C)C3=O)C2=NC2=CC=C(O)C=C12 | 3761.8 | Semi standard non polar | 33892256 | SN-38,2TBDMS,isomer #1 | CCC1=C2CN3C(=CC4=C(COC(=O)[C@@]4(CC)O[Si](C)(C)C(C)(C)C)C3=O)C2=NC2=CC=C(O[Si](C)(C)C(C)(C)C)C=C12 | 3934.8 | Semi 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 - SN-38 GC-MS (Non-derivatized) - 70eV, Positive | splash10-0cds-0019000000-79b6acd0ac5020e4fdae | 2017-09-20 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - SN-38 GC-MS (2 TMS) - 70eV, Positive | splash10-0200-4001940000-c0a3b0dcc77abbfdfa52 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - SN-38 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 - SN-38 10V, Positive-QTOF | splash10-0006-0019000000-953c13d44f1f753e244d | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 20V, Positive-QTOF | splash10-000f-0049000000-3bc00f235d1656474cea | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 40V, Positive-QTOF | splash10-000i-0090000000-0c561151ab4c396125a0 | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 10V, Negative-QTOF | splash10-0006-0009000000-1a6f7a9c5371b8ce6492 | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 20V, Negative-QTOF | splash10-0005-0009000000-2782aeafd6952cc625f1 | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 40V, Negative-QTOF | splash10-004r-1092000000-87d95d0b42a2bf62be7e | 2017-07-26 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 10V, Positive-QTOF | splash10-0006-0009000000-d961fc5bd50f1cdfa8f1 | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 20V, Positive-QTOF | splash10-002f-0009000000-ba15d6f829920d4c5f91 | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 40V, Positive-QTOF | splash10-0006-0198000000-d61425ae38337cad41b5 | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 10V, Negative-QTOF | splash10-0006-0009000000-2c62dc28c202dd25256d | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 20V, Negative-QTOF | splash10-01ox-0009000000-088053c8ac6be94eaf25 | 2021-10-12 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - SN-38 40V, Negative-QTOF | splash10-000i-0349000000-d2fa036a90b6e5d04a1c | 2021-10-12 | Wishart Lab | View Spectrum |
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General References | - Magrane M: UniProt Knowledgebase: a hub of integrated protein data. Database (Oxford). 2011 Mar 29;2011:bar009. doi: 10.1093/database/bar009. Print 2011. [PubMed:21447597 ]
- Sostelly A, Payen L, Guitton J, Di Pietro A, Falson P, Honorat M, Boumendjel A, Geze A, Freyer G, Tod M: Quantitative evaluation of the combination between cytotoxic drug and efflux transporter inhibitors based on a tumour growth inhibition model. Fundam Clin Pharmacol. 2014 Apr;28(2):161-9. doi: 10.1111/fcp.12005. Epub 2013 Feb 6. [PubMed:23384250 ]
- Yao Y, Su X, Xie Y, Wang Y, Kang T, Gou L, Yi C, Yang J: Synthesis, characterization, and antitumor evaluation of the albumin-SN38 conjugate. Anticancer Drugs. 2013 Mar;24(3):270-7. doi: 10.1097/CAD.0b013e32835c3543. [PubMed:23233044 ]
- Sostelly A, Payen L, Guitton J, Di Pietro A, Falson P, Honorat M, Valdameri G, Geze A, Boumendjel A, Freyer G, Tod M: A template model for studying anticancer drug efflux transporter inhibitors in vitro. Fundam Clin Pharmacol. 2013 Oct;27(5):544-56. doi: 10.1111/j.1472-8206.2012.01054.x. Epub 2012 Aug 8. [PubMed:22882086 ]
- Shimo T, Kurebayashi J, Kanomata N, Yamashita T, Kozuka Y, Moriya T, Sonoo H: Antitumor and anticancer stem cell activity of a poly ADP-ribose polymerase inhibitor olaparib in breast cancer cells. Breast Cancer. 2014 Jan;21(1):75-85. doi: 10.1007/s12282-012-0356-z. Epub 2012 Mar 28. [PubMed:22454224 ]
- Al-Kasspooles MF, Williamson SK, Henry D, Howell J, Niu F, Decedue CJ, Roby KF: Preclinical antitumor activity of a nanoparticulate SN38. Invest New Drugs. 2013 Aug;31(4):871-80. doi: 10.1007/s10637-012-9919-2. Epub 2013 Jan 9. [PubMed:23299391 ]
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