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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 03:49:14 UTC
Update Date2021-09-26 23:00:04 UTC
HMDB IDHMDB0249313
Secondary Accession NumbersNone
Metabolite Identification
Common Name4-Desacetylpaclitaxel 4-methyl carbonate
Description4-Desacetylpaclitaxel 4-methyl carbonate belongs to the class of organic compounds known as taxanes and derivatives. These are diterpenoids with a structure based either on the taxane skeleton, or a derivative thereof. In term of phytochemistry, several derivatives of the taxane skeleton exist: 2(3->20)-abeotaxane, 3,11-cyclotaxane, 11(15->1),11(10->9)-abeotaxane, 3,8-seco-taxane, and 11(15->1)-abeotaxane, among others. More complex skeletons have been found recently, which include the taxane-derived [3.3.3] propellane ring system. Based on a literature review a significant number of articles have been published on 4-Desacetylpaclitaxel 4-methyl carbonate. This compound has been identified in human blood as reported by (PMID: 31557052 ). 4-desacetylpaclitaxel 4-methyl carbonate is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 4-Desacetylpaclitaxel 4-methyl carbonate is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
4-Desacetylpaclitaxel 4-methyl carbonic acidGenerator
Chemical FormulaC47H51NO15
Average Molecular Weight869.917
Monoisotopic Molecular Weight869.325869946
IUPAC Name12-(acetyloxy)-1,9-dihydroxy-15-{[2-hydroxy-3-phenyl-3-(phenylformamido)propanoyl]oxy}-4-[(methoxycarbonyl)oxy]-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0^{3,10}.0^{4,7}]heptadec-13-en-2-yl benzoate
Traditional Name12-(acetyloxy)-1,9-dihydroxy-15-{[2-hydroxy-3-phenyl-3-(phenylformamido)propanoyl]oxy}-4-[(methoxycarbonyl)oxy]-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0^{3,10}.0^{4,7}]heptadec-13-en-2-yl benzoate
CAS Registry NumberNot Available
SMILES
COC(=O)OC12COC1CC(O)C1(C)C2C(OC(=O)C2=CC=CC=C2)C2(O)CC(OC(=O)C(O)C(NC(=O)C3=CC=CC=C3)C3=CC=CC=C3)C(C)=C(C(OC(C)=O)C1=O)C2(C)C
InChI Identifier
InChI=1S/C47H51NO15/c1-25-30(61-42(55)35(51)34(27-16-10-7-11-17-27)48-40(53)28-18-12-8-13-19-28)23-47(57)39(62-41(54)29-20-14-9-15-21-29)37-45(5,38(52)36(60-26(2)49)33(25)44(47,3)4)31(50)22-32-46(37,24-59-32)63-43(56)58-6/h7-21,30-32,34-37,39,50-51,57H,22-24H2,1-6H3,(H,48,53)
InChI KeyGMJWGJSDPOAZTP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as taxanes and derivatives. These are diterpenoids with a structure based either on the taxane skeleton, or a derivative thereof. In term of phytochemistry, several derivatives of the taxane skeleton exist: 2(3->20)-Abeotaxane, 3,11-cyclotaxane, 11(15->1),11(10->9)-abeotaxane, 3,8-seco-taxane, and 11(15->1)-abeotaxane, among others. More complex skeletons have been found recently, which include the taxane-derived [3.3.3] Propellane ring system.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassDiterpenoids
Direct ParentTaxanes and derivatives
Alternative Parents
Substituents
  • Taxane diterpenoid
  • N-benzylbenzamide
  • Beta amino acid or derivatives
  • Benzoate ester
  • Benzamide
  • Benzoic acid or derivatives
  • Tricarboxylic acid or derivatives
  • Benzoyl
  • Fatty acid ester
  • Alpha-acyloxy ketone
  • Carbonic acid diester
  • Fatty acyl
  • Monocyclic benzene moiety
  • Benzenoid
  • Monosaccharide
  • Tertiary alcohol
  • Cyclic alcohol
  • Carboxamide group
  • Carboxylic acid ester
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Ketone
  • Oxetane
  • Carbonic acid derivative
  • Dialkyl ether
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Organic nitrogen compound
  • Alcohol
  • Carbonyl group
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP3.16ALOGPS
logP4.16ChemAxon
logS-5.1ALOGPS
pKa (Strongest Acidic)10.47ChemAxon
pKa (Strongest Basic)-1.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count11ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area230.52 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity219.92 m³·mol⁻¹ChemAxon
Polarizability87.59 ųChemAxon
Number of Rings7ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-307.19630932474
DeepCCS[M+Na]+281.17930932474
AllCCS[M+H]+283.532859911
AllCCS[M+H-H2O]+283.532859911
AllCCS[M+NH4]+283.532859911
AllCCS[M+Na]+283.432859911
AllCCS[M-H]-262.332859911
AllCCS[M+Na-2H]-266.932859911
AllCCS[M+HCOO]-272.132859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4-Desacetylpaclitaxel 4-methyl carbonateCOC(=O)OC12COC1CC(O)C1(C)C2C(OC(=O)C2=CC=CC=C2)C2(O)CC(OC(=O)C(O)C(NC(=O)C3=CC=CC=C3)C3=CC=CC=C3)C(C)=C(C(OC(C)=O)C1=O)C2(C)C6475.4Standard polar33892256
4-Desacetylpaclitaxel 4-methyl carbonateCOC(=O)OC12COC1CC(O)C1(C)C2C(OC(=O)C2=CC=CC=C2)C2(O)CC(OC(=O)C(O)C(NC(=O)C3=CC=CC=C3)C3=CC=CC=C3)C(C)=C(C(OC(C)=O)C1=O)C2(C)C5075.0Standard non polar33892256
4-Desacetylpaclitaxel 4-methyl carbonateCOC(=O)OC12COC1CC(O)C1(C)C2C(OC(=O)C2=CC=CC=C2)C2(O)CC(OC(=O)C(O)C(NC(=O)C3=CC=CC=C3)C3=CC=CC=C3)C(C)=C(C(OC(C)=O)C1=O)C2(C)C5992.9Semi standard non polar33892256
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 10V, Positive-QTOFsplash10-059i-0360090220-644ecbafa21cfb393bcd2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 20V, Positive-QTOFsplash10-07vi-1490010100-981b04a2da5e89fa0e8b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 40V, Positive-QTOFsplash10-004i-6944005120-8f13de6c173352331be82021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 10V, Negative-QTOFsplash10-003r-2110081900-a16fdfbcc478a5f526912021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 20V, Negative-QTOFsplash10-004i-9340062610-91161b04b3000635a0932021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Desacetylpaclitaxel 4-methyl carbonate 40V, Negative-QTOFsplash10-004i-9320000010-779034159d14a0a4a69d2021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID19166775
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound23561093
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]