114870-03-0
Name | Fondaparinux sodium |
CAS | 114870-03-0 |
EINECS(EC#) | 686-283-7 |
Molecular Formula | C31H43N3O49S8.10Na |
MDL Number | MFCD06794972 |
Molecular Weight | 1728.08 |
MOL File | 114870-03-0.mol |
Synonyms
D01844
Arixtra
Arixtra (tn)
Sodium daparinux
Fondaparin SodiuM
Fondaparinux sodium
Fondaparinux Sodiun
US-DMF No. : 030767
Fondaparinux sodium N-4
Fondaparinux sodium, >=98%
Fondaparinux (sodium salt)
Fondaparinux sodiuM(D01844)
Fondaparinux sodium USP/EP/BP
Fondaparinux and intermediates
Fondaparinux sodium (jan/usan/inn)
Fondaparinux SodiuM Identification
Natural heparin pentasaccharide Sodium
Fondaparinux Sodium (Fondaparinux Sodium)
Fondaparinux Sodium Identification (1282718)
Fondaparinux Sodium for Assay (COLD SHIPMENT REQUIRED) (1282707)
Fondaparinux Sodium Identification(Secondary Standards traceble to USP)
decasodium 6-[[6-[[2-carboxylato-4-hydroxy-6-[[4-hydroxy-6-methoxy-5-(sulfonatoamino)-2-(sulfonatooxymethyl)-3-oxanyl]oxy]-5-sulfonatooxy-3-oxanyl]oxy]-5-(sulfonatoamino)-4-sulfonatooxy-2-(sulfonatoox
Methyl O-2-Deoxy-6-O-sulfo-2-(sulfoamino)-α-D-glucopyranosyl-(14)-O-β- D-glucopyranuronosyl-(14)-O-2-deoxy-3,6-di-O-sulfo-2-(sulfoamino)-α-D-glucopyranosyl-(14)-O-2-O-sulfo-α-L-idopyranuronosyl-(14)-2-deoxy-2-(sulfoamino)-α-D-glucopyra
a-D-Glucopyranoside, methylO-2-deoxy-6-O-sulfo-2-(sulfoamino)-a-D-glucopyranosyl-(14)-O-b-D-glucopyranuronosyl-(14)-O-2-deoxy-3,6-di-O-sulfo-2-(sulfoamino)-a-D-glucopyranosyl-(14)-O-2-O-sulfo-a-L-idopyranuronosyl-(14)-2-deoxy-2-(sulfoamino)-,6-(hydrog
decasodiuM (2R,3S,4S,5R,6R)-3-{[(2R,3R,4R,5R,6R)-5-{[(2R,3R,4R,5S,6S)-6-carboxylato-5-{[(2R,3R,4R,5S,6R)-4,5-dihydroxy-3-(sulfonatoaMino)-6-[(sulfonatooxy)Methyl]oxan-2-yl]oxy}-3,4-dihydroxyoxan-2-yl]oxy}-3-(sulfonatoaMino)-4-(sulfonatooxy)-6-[(sulfonatoo
(2S,3S,4R,5R,6R)-6-(((2R,3R,4R,5R,6R)-6-(((2R,3S,4S,5R,6R)-2-Carboxy-4-hydroxy-6-(((2R,3S,4R,5R,6S)-4-hydroxy-6-methoxy-5-(sulfoamino)-2-((sulfooxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfooxy)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfoamino)-4-(sulfooxy)-
Methyl O-2-Deoxy-6-O-sulfo-2-(sulfoaMino)-α-D-glucopyranosyl-(14)-O-β-
D-glucopyranuronosyl-(14)-O-2-deoxy-3,6-di-O-sulfo-2-(sulfoaMino)-α-D-glucopyranosyl-(14)-O-2-O-sulfo-α-L-idopyranuronosyl-(14)-2-deoxy-2-(sulfoaMino)-α-D-glucopyranoside 6-(Hydrogen Sulfate) DecasodiuM Salt
decasodium (2R,3S,4S,5R,6R)-3-[(2R,3R,4R,6R)-5-[(2R,3R,4S,5S,6S)-6-carboxylato-5-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-3-(sulfonatoamino)-6-(sulfonatooxymethyl)oxan-2-yl]oxy-3,4-dihydroxy-oxan-2-yl]oxy-3-(sulfonatoamino)-4-sulfonatooxy-6-(sulfonatooxymethyl)oxan-2-yl]oxy-4-hydroxy-6-[(2R,3S,4R,5R,6S)-4-hydroxy-6-methoxy-5-(sulfonatoamino)-2-(sulfonatooxymethyl)oxan-3-yl]oxy-5-sulfonatooxy-oxane-2-carboxylate
(2S,3S,4R,5R,6R)-6-(((2R,3R,4R,5R,6R)-6-(((2R,3S,4S,5R,6R)-2-carboxy-4-hydroxy-6-(((2R,3S,4R,5R,6S)-4-hydroxy-6-methoxy-5-(sulfoamino)-2-((sulfooxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfooxy)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfoamino)-4-(sulfooxy)-2-((sulfooxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-3-(((2R,3R,4R,5S,6R)-4,5-dihydroxy-3-(sulfoamino)-6-((sulfooxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxytetrahydro-2H-pyran-2-carboxylic acid, sodium salt
(2S,3S,4R,5R,6R)-6-(((2R,3R,4R,5R,6R)-6-(((2R,3S,4S,5R,6R)-2-Carboxy-4-hydroxy-6-(((2R,3S,4R,5R,6S)-4-hydroxy-6-methoxy-5-(sulfoamino)-2-((sulfooxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfooxy)tetrahydro-2H-pyran-3-yl)oxy)-5-(sulfoamino)-4-(sulfooxy)-2-((sulfooxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)-3-(((2R,3R,4R,5S,6R)-4,5-dihydroxy-3-(sulfoamino)-6-((sulfooxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)-4,5-dihydroxytetrahydro-2H-pyran-2-carboxylic acid, decasodium salt
Chemical Properties
Melting point | >209°C (dec.) |
alpha | D23 +48° (c = 0.61 in water) |
storage temp. | -70°C |
solubility | Water |
form | Solid |
color | White to Off-White |
InChIKey | XEKSTYNIJLDDAZ-UWCYYFDCNA-D |
Hazard Information
Description
Fondaparinux sodium (114870-03-0) was first introduced in the US for prophylaxis of deep vein
thrombosis which may lead to pulmonary embolism following major orthopaedic surgery.
Fondaparinux is the first of a new class of antithrombic agents distinct from low molecular
weight heparin (LMWH) and heparin. This entirely synthetic molecule is a copy of the
heparin pentasaccharide sequence, the shortest fragment able to catalyze antithrombin lllmediated
inhibition of factor Xa thereby inhibiting thrombin generation without antithrombin
action. Fondaparinux does not display significant effects on coagulation tests (such as activated partial thromboplastin time and prothrombin time), does not bind to platelet factor
4 or promote heparin-induced thrombocytopenia. In phase III studies, fondaparinux
significantly reduced the incidence of thromboembolism following orthopedic surgery, with
an overall risk reduction of 50% in comparison to the LMWH, enoxaparin. Following
subcutaneous administration, fondaparinux has a nearly complete bioavailability, a rapid
onset of action, a prolonged half-life (17.2 h) enabling once daily dosing and is not
metabolized preceeding renal excretion. The drug appears to be generally safe, with
haemoragic complications either comparable to or higher than those for LMWH.
Chemical Properties
White Powder (after lyophilisation)
Originator
Sanofi-Synthelabo (France)
Uses
Synthetic pentasaccharide corresponding to the anti-thrombin binding site of heparin. Anti-thrombotic.
Definition
ChEBI: An organic sodium salt, being the decasodium salt of fondaparinux.
Brand name
Arixtra (GlaxoSmithKline).
Biochem/physiol Actions
Fondaparinux sodium is an antithrombotic anticoagulant, a Factor Xa inhibitor. Fondaparinux sodium is chemically related to low molecular weight heparins. Its pentasaccharide structure corresponds to the antithrombin III (ATIII) binding site of heparin. Fondaparinux sodium binding at this site potentiates the natural inhibitory effect of ATIII against factor Xa by a factor of approximately 300, which results in inhibition of thrombin generation.
Clinical Use
Prophylaxis of deep vein thrombosis
Treatment of deep vein thrombosis, pulmonary embolism, unstable angina and after a myocardial infarction
Treatment of deep vein thrombosis, pulmonary embolism, unstable angina and after a myocardial infarction
Side effects
Fondaparinux sodium is a prescription medication and as such, most people do not have serious side effects. However, pain, bruising, redness, and swelling at the injection site may occur, as well as headache, nausea, vomiting, swelling of the hands and feet, or fever.
A few serious side effects may occur: easy bleeding or bruising; dark urine, yellowing of the eyes or skin; shortness of breath, coughing up blood, chest pain, unusual dizziness, fainting, fast or irregular heartbeat; joint or muscle pain; confusion. Very few patients may experience allergic reactions (e.g. rash, itching or swelling (especially on face/tongue/throat); severe dizziness, difficulty breathing).
Synthesis
Starting from Dglucose,
D-cellobiose, and D-glucosamine, the production
process for the synthesis of the pentasaccharide involves
about 55 steps. The synthesis was accomplished by
preparing a fully-protected pentasaccharide, and then
converting it into the final product. The choice of protecting
groups was dictated by two factors: the need to introduce
sulfate substituents (O- as well as N-linked), carboxylate
groups and hydroxyl groups, in the proper positions on the
target molecule, and the constraints of current methods for
oligosaccharide synthesis, particularly the use of 2-azido
glucose derivatives to achieve stereoselective introduction of
α-D-linked glucosamine units. All the monosaccharide
synthons were obtained from glucose or from glucosamine, and the synthesis is outlined in the scheme.
Trisaccharide 108 and disaccharide 109 are the two key
building blocks in the synthesis. Coupling 108 and 109 was
carried out at -20°C in DCE. Fully protected pentasaccharide
110 was then converted into the target compound 10 using
traditional methods: saponification, O-sulfation, cleavage of
benzyl ethers with simultaneous reduction of azido into amino functions and finally N-sulfation. Preparation of
trisaccharide building block 108 started from 1,6-anhydrocellobiose
(111). Selective protection at 4’,6’ position was
achieved through benzylidenation to provide crude 112
which was converted into epoxide 113 by treatment with
sodium methoxide and benzylation. Compound 113 was isolated after filtration on silica gel and crystallization (m.p.
184-5°C). Trans-diaxial opening of the epoxide yielded the
2-azido derivative (66%) which was acetylated to give 114
(99%). The benzylidene was cleaved (92%) and the diol was
then converted into 115 by successive tritylation,
levulinoylation, detritylation, oxidation, methylation and hydrazinolysis (60% over the 6 steps). Imidate 116 was
prepared in the usual way from its hydroxyl precursor and
coupled with 115 to give O-linked trisaccharide 117 in 78%
yield. Compound 117 was acetolysed (91%), the anomeric
acetate was cleaved by benzylamine in ether (100%) and
imidate 108 was obtained by reaction with potassium
carbonate and trichloroacetonitrile at room temperature (α,
β- mixture with α as the predominant isomer, 76%). The
preparation of the other building block 109 is described as
following. Selective 6-acetylation of 118 by N -
acetylimidazole in DCE gave 119 in 60% yield. Treatment
of 119 with 120 using DCE/pyridinium perchlorate and
followed dechloroacetylation using hydrazinedithiocarbonate
afforded the crystalline disaccharide 109.
Drug interactions
Potentially hazardous interactions with other drugs
Increased risk of bleeding in combination with any other drugs that affect coagulation.
Increased risk of bleeding in combination with any other drugs that affect coagulation.
Metabolism
Although not fully evaluated, there is no evidence of
fondaparinux metabolism and in particular no evidence
for the formation of active metabolites.
Fondaparinux is excreted to 64-77% by the kidney as
unchanged compound.
Questions And Answer
-
Contraindications
Fondaparinux sodium injection is contraindicated in the following conditions:
Severe renal impairment (creatinine clearance <30 mL/min) in prophylaxis or treatment of venous thromboembolism.
Active major bleeding.
Bacterial endocarditis.
Thrombocytopenia associated with a positive in vitro test for anti-platelet antibody in the presence of fondaparinux sodium.
Body weight <50 kg (venous thromboembolism prophylaxis only).
History of serious hypersensitivity reaction (e.g., angioedema, anaphylactoid/anaphylactic reactions) to fondaparinux sodium. ;
Supplier
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