Epothilone B
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Grundinformationen
- CAS
152044-54-7- Standard-SMILES
C/C(=C\c1csc(C)n1)[C@@H]1C[C@@H]2O[C@]2(C)CCC[C@H](C)[C@H](O)[C@@H](C)C(=O)C(C)(C)[C@@H](O)CC(=O)O1- InChIKey
QXRSDHAAWVKZLJ-PVYNADRNSA-N- Summenformel
- C27H41NO6S
- Durchschnittliche Molmasse
- 507,7 g/mol
- Monoisotopische Masse
- 507,26545903
Überblick
Epothilone B is an epithilone that is epithilone D in which the double bond in the macrocyclic ring has been oxidised to the corresponding epoxide (the S,S stereoisomer). It has a role as an antineoplastic agent, a microtubule-stabilising agent and an apoptosis inducer. It is an epoxide and an epothilone.
Namen und Bezeichner
- Bevorzugter Name
- Epothilone B
- IUPAC
- (1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione
- Englischer Name
- Epothilone B
- Summenformel
- C27H41NO6S
- Molmasse
- 507.68
Namen und Synonyme
Epothilone BPatupilone152044-54-7(-)-Epothilone BEpo BEpothilon BEPO 906patupilonaEpithilone bEPO 906AGNF-PF-193EPO-906
Weitere Namen anzeigen
EPOTHILONECS-556atupiloneEbomycin BOncology API
patupilonumDTXSID4046862UEC0H0URSEEPO906AEPO-906ACHEBI:31550(1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione(1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione
Datenbank-Bezeichner
- CAS
152044-54-7- PubChem CID
- 448013
- DTXSID
DTXSID4046862- ChEMBL
CHEMBL94657- ChEBI
CHEBI:31550- UNII
- UEC0H0URSE
- EC Number
- 604-822-6
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- XLogP
- 4,2
- Polarare Oberfläche (TPSA)
- 137 Ų
- H-Brücken-Donoren
- 2
- H-Brücken-Akzeptoren
- 8
- Frei drehbare Bindungen
- 2
- Schwere Atome
- 35
- Formalladung
- 0
- Komplexität
- 815
Experimentelle und physikochemische Eigenschaften
DrugsPharmaceuticals -> Listed in ZINC15
LipidsPolyketides [PK] -> Macrolides and lactone polyketides [PK04]
Endocrine DisruptorsPotential endocrine disrupting compound
Physikochemische Eigenschaften
- Schmelzpunkt
- 95 · 95-97°C
- Siedepunkt
- 680.2 · 680.2±55.0 °C(Predicted)
- Dichte
- 1.136 · 1.136
- storage temp.
- -20 °C · Store at -20°C
- Löslichkeit
- Soluble in DMSO (up to 40 mg/ml) or in Ethanol (up to 35 mg/ml).
- Aggregatzustand
- White to off-white solid
- pka
- 13.57 · 13.57±0.70(Predicted)
- Farbe
- colorless
- Biologische Quelle
- Sorangium cellulosum
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H300 (75%): Fatal if swallowed [Danger Acute toxicity, oral]
P203, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P301+P316, P302+P352, P304+P340, P305+P354+P338, P316, P317, P318, P319, P321, P330, P332+P317, P333+P317, P361+P364, P362+P364, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 4 reports by companies from 4 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
4,17-Dioxabicyclo14.1.0heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl-, (1S,3S,7S,10R,11S,12S,16R)-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazard Classes and CategoriesAcute Tox. 1 (75%)
Sicherheitsdaten
- wgk
- 3
- hs_code
- 29419090
- Speicherklasse
- 11 - Combustible Solids
Chemie und Industrie
Pharmakologische Informationen
Mechanism of Action
The principal mechanism of the epothilone class is inhibition of microtubule function. Microtubules are essential to cell division, and epothilones therefore stop cells from properly dividing. Epothilone B possess the same biological effects as taxol both in vitro and in cultured cells. This is because they share the same binding site, as well as binding affinity to the microtubule. Like taxol, epothilone B binds to the αβ-tubulin heterodimer subunit. Once bound, the rate of αβ-tubulin dissociation decreases, thus stabilizing the microtubules. Furthermore, epothilone B has also been shown to induce tubulin polymerization into microtubules without the presence of GTP. This is caused by formation of microtubule bundles throughout the cytoplasm. Finally, epothilone B also causes cell cycle arrest at the G2-M transition phase, thus leading to cytotoxicity and eventually cell apoptosis.
MeSH Pharmacological Classification
Substances that inhibit or prevent the proliferation of NEOPLASMS.
Agents that interact with TUBULIN to inhibit or promote polymerization of MICROTUBULES.
Anwendungen
VerwendenEpothilones are polyketide natural products that inhibit cancer cells by a mechanism similar to paclitaxel, and also are effective against paclitaxel-resistant tumours. Epothilone B is what is known as a microtubule stabilizer. When a cell divides, the chromosomes that will end up in each cell are separated by thin filaments called microtubules. Normally these microtubules then break down as the cell division progresses. This class of cytotoxic chemo drugs prevents that break down and thus prevents cells from completing division.
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