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OTERACIL POTTASIUM

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ChemSpider 2D Image | RR4580000 | C4H2KN3O4

OTERACIL

UNII4R7FFA00RX, CAS Number2207-75-2,  WeightAverage: 195.175, Monoisotopic: 194.96823705, Chemical FormulaC4H2KN3O4

[K+].OC1=NC(=NC(=O)N1)C([O-])=O

1,3,5-Triazine-2-carboxylic acid, 1,4,5,6-tetrahydro-4,6-dioxo-, potassium salt (1:1)

218-627-5[EINECS]

2207-75-2[RN]

4,6-Dihydroxy-1,3,5-triazine-2-carboxylic acid potassium salt

  • KOX
  • NSC 28841
  • Oxonate
  • Oxonate, potassium

CDSCO APPROVED,01.02.2022

File:Animated-Flag-India.gif - Wikimedia Commons

Gimeracil bulk & Oteracil potassium bulk and Tegafur 15mg/20mg, Gimeracil 4.35mg/5.8mg and Oteracil 11.8mg/15.8mg capsules

indicated in adults for the treatment of advanced gastric cancer when given in combination with cisplatin.

Oteracil Potassium is the potassium salt of oxonate, an enzyme inhibitor that modulates 5- fluorouracil (5-FU) toxicity. Potassium oxonate inhibits orotate phosphoribosyltransferase, which catalyzes the conversion of 5-FU to its active or phosphorylated form, FUMP. Upon oral administration, Oxonate is selectively distributed to the intracellular sites of tissues lining the small intestines, producing localized inhibitory effects within the gastrointestinal tract. As a result, 5-FU associated gastrointestinal toxic effects are reduced and the incidence of diarrhea or mucositis is decreased in 5-FU related therapy.

Oteracil is an adjunct to antineoplastic therapy, used to reduce the toxic side effects associated with chemotherapy. Approved by the European Medicines Agency (EMA) in March 2011, Oteracil is available in combination with Gimeracil and Tegafur within the commercially available product “Teysuno”. The main active ingredient in Teysuno is Tegafur, a pro-drug of Fluorouracil (5-FU), which is a cytotoxic anti-metabolite drug that acts on rapidly dividing cancer cells. By mimicking a class of compounds called “pyrimidines” that are essential components of RNA and DNA, 5-FU is able to insert itself into strands of DNA and RNA, thereby halting the replication process necessary for continued cancer growth.

Oteracil’s main role within Teysuno is to reduce the activity of 5-FU within normal gastrointestinal mucosa, and therefore reduce’s gastrointestinal toxicity 1. It functions by blocking the enzyme orotate phosphoribosyltransferase (OPRT), which is involved in the production of 5-FU.

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SYNTHESIS

https://patents.google.com/patent/CN103435566A/zh

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https://europepmc.org/article/pmc/pmc7717319

Poje et al. reported a two-step, gram-scale preparation of the TS-1 additive oteracil 21 (Scheme 16).226 Iodine-mediated-oxidation of uric acid 116 produced dehydroallantoin 117 as the major product, and subsequent treatment with potassium hydroxide resulted in the rearranged product oteracil 21.227

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Synthesis of Oteracil 21a

aReagents and conditions: (a) LiOH, I2, H2O, 5 °C, 5 min, then AcOH, 75%; (b) aq KOH, 20 min, rt, 82%.

(226) Poje M; Sokolić-Maravić L The mechanism for the conversion of uric acid into allantoin and dehydro-allantoin: A new look at an old problem. Tetrahedron 1986, 42 (2), 747–751. [Google Scholar]

(227) Sugi M; Igi M EP Patent 0957096, 1999.

EP0957096A1 *1998-05-111999-11-17SUMIKA FINE CHEMICALS Co., Ltd.Method for producing potassium oxonate

CN101475539A *2009-02-112009-07-08鲁南制药集团股份有限公司Refining method for preparing high-purity oteracil potassium

CN102250025A *2011-05-182011-11-23深圳万乐药业有限公司Preparation method suitable for industrially producing oteracil potassium

CN102746244A *2012-07-272012-10-24南京正大天晴制药有限公司Refining method of oteracil potassium

//////////OTERACIL POTTASIUM, KOX, NSC 28841, Oxonate, Oxonate potassium, INDIA 2022, APPROVALS 2022, CANCER

[K+].OC1=NC(=NC(=O)N1)C([O-])=O

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DR ANTHONY CRASTO

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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK LIFE SCIENCES LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 PLUS year tenure till date June 2021, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 90 Lakh plus views on dozen plus blogs, 233 countries, 7 continents, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 33 lakh plus views on New Drug Approvals Blog in 233 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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