Fosaprepitant
Fosaprepitant is only found in individuals that have used or taken this drug. It is an intravenously administered antiemetic drug. It is a prodrug of Aprepitant. It aids in the prevention of acute and delayed nausea and vomiting associated with chemotherapy treatment.Aprepitant has been shown in animal models to inhibit emesis induced by cytotoxic chemotherapeutic agents, such as cisplatin, via central actions. Animal and human Positron Emission Tomography (PET) studies with Aprepitant have shown that it crosses the blood brain barrier and occupies brain NK1 receptors. Animal and human studies show that Aprepitant augments the antiemetic activity of the 5-HT3-receptor antagonist ondansetron and the corticosteroid ethasone and inhibits both the acute and delayed phases of cisplatin induced emesis.In summary, the active form of fosaprepitant is as an NK1 antagonist which is because it blocks signals given off by NK1 receptors. This therefore decreases the likelihood of vomiting in patients experiencing.
Structure for HMDB15662 (Fosaprepitant)
C23H22F7N4O6P
614.4066
614.116518403
(3-{[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl}-5-oxo-2,5-dihydro-1H-1,2,4-triazol-1-yl)phosphonic acid
fosaprepitant
172673-20-0
BARDROPHSZEBKC-OITMNORJSA-N
This compound belongs to the class of chemical entities known as phenylmorpholines. These are aromatic compounds containing a morpholine ring and a benzene ring linked to each other through a CC or a CN bond.
Chemical entities
Organic compounds
Organoheterocyclic compounds
Oxazinanes
Phenylmorpholines
Aromatic heteromonocyclic compounds
Expected but not Quantified
Solid
Predicted LC-MS/MS Spectrum – 10V, PositiveNot Available
Predicted LC-MS/MS Spectrum – 20V, PositiveNot Available
Predicted LC-MS/MS Spectrum – 40V, PositiveNot Available
Predicted LC-MS/MS Spectrum – 10V, NegativeNot Available
Predicted LC-MS/MS Spectrum – 20V, NegativeNot Available
Predicted LC-MS/MS Spectrum – 40V, NegativeNot Available
Not Available
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Not Available
None
None
DB06717
Not Available
Not Available
Not Available
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Not Available
189912
Not Available
Not Available
Not Available
Fosaprepitant
HMDB15662
HMDB15662
Not Available
219090
Not Available
64321
Enzymes
- General function:
- Involved in monooxygenase activity
- Specific function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.
- Gene Name:
- CYP3A4
- Uniprot ID:
- P08684
- Molecular weight:
- 57255.585
References
- Navari RM: Fosaprepitant: a neurokinin-1 receptor antagonist for the prevention of chemotherapy-induced nausea and vomiting. Expert Rev Anticancer Ther. 2008 Nov;8(11):1733-42. doi: 10.1586/14737140.8.11.1733. [PubMed:18983233 ]
- Sanchez RI, Wang RW, Newton DJ, Bakhtiar R, Lu P, Chiu SH, Evans DC, Huskey SE: Cytochrome P450 3A4 is the major enzyme involved in the metabolism of the substance P receptor antagonist aprepitant. Drug Metab Dispos. 2004 Nov;32(11):1287-92. Epub 2004 Aug 10. [PubMed:15304427 ]
- General function:
- Involved in monooxygenase activity
- Specific function:
- Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine.
- Gene Name:
- CYP2C19
- Uniprot ID:
- P33261
- Molecular weight:
- 55944.565
References
- Navari RM: Fosaprepitant: a neurokinin-1 receptor antagonist for the prevention of chemotherapy-induced nausea and vomiting. Expert Rev Anticancer Ther. 2008 Nov;8(11):1733-42. doi: 10.1586/14737140.8.11.1733. [PubMed:18983233 ]
- General function:
- Involved in monooxygenase activity
- Specific function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N3-demethylation. Also acts in the metabolism of aflatoxin B1 and acetaminophen. Participates in the bioactivation of carcinogenic aromatic and heterocyclic amines. Catalizes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin.
- Gene Name:
- CYP1A2
- Uniprot ID:
- P05177
- Molecular weight:
- 58406.915
References
- Navari RM: Fosaprepitant: a neurokinin-1 receptor antagonist for the prevention of chemotherapy-induced nausea and vomiting. Expert Rev Anticancer Ther. 2008 Nov;8(11):1733-42. doi: 10.1586/14737140.8.11.1733. [PubMed:18983233 ]
- General function:
- Involved in G-protein coupled receptor protein signaling pathway
- Specific function:
- This is a receptor for the tachykinin neuropeptide substance P. It is probably associated with G proteins that activate a phosphatidylinositol-calcium second messenger system. The rank order of affinity of this receptor to tachykinins is:substance P > substance K > neuromedin-K
- Gene Name:
- TACR1
- Uniprot ID:
- P25103
- Molecular weight:
- 46250.5
References
- Poli-Bigelli S, Rodrigues-Pereira J, Carides AD, Julie Ma G, Eldridge K, Hipple A, Evans JK, Horgan KJ, Lawson F: Addition of the neurokinin 1 receptor antagonist aprepitant to standard antiemetic therapy improves control of chemotherapy-induced nausea and vomiting. Results from a randomized, double-blind, placebo-controlled trial in Latin America. Cancer. 2003 Jun 15;97(12):3090-8. [PubMed:12784346 ]
- Zhao MM, McNamara JM, Ho GJ, Emerson KM, Song ZJ, Tschaen DM, Brands KM, Dolling UH, Grabowski EJ, Reider PJ, Cottrell IF, Ashwood MS, Bishop BC: Practical asymmetric synthesis of aprepitant, a potent human NK-1 receptor antagonist, via a stereoselective Lewis acid-catalyzed trans acetalization reaction. J Org Chem. 2002 Sep 20;67(19):6743-7. [PubMed:12227806 ]
- Bergstrom M, Hargreaves RJ, Burns HD, Goldberg MR, Sciberras D, Reines SA, Petty KJ, Ogren M, Antoni G, Langstrom B, Eskola O, Scheinin M, Solin O, Majumdar AK, Constanzer ML, Battisti WP, Bradstreet TE, Gargano C, Hietala J: Human positron emission tomography studies of brain neurokinin 1 receptor occupancy by aprepitant. Biol Psychiatry. 2004 May 15;55(10):1007-12. [PubMed:15121485 ]
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]