856866-72-3 Usage
Novel antibacterial drugs
Tedizolid belongs to the second generation oxazolidinone antibiotics, being an analog of linezolid as well as a kind of protein synthesis inhibitors, acting on the bacterial ribosomal 50S subunit and causing inhibition of bacterial protein synthesis. Compared with linezolid, the efficacy of the two is basically the same, but linezolid required to be taken for 2 times a day and for 10 continuous days while Tedizolid only takes 1 time daily and continuous taking for 6 days.
On June 20, 2014, the US FDA had approved a new antimicrobial drug Tedizolid (trade name: Sivextro) for the treatment of skin infections in adult patients. Sivextro is approved for the treatment of acute bacterial skin and skin infections caused by certain sensitive bacteria such as Staphylococcus aureus (including methicillin-resistant strains and methicillin-sensitive strains), various streptococci and Enterococcus faecalis (ABSSSI). Sivextro is administered intravenously and orally.
Tedizolid phosphate is a second-generation oxazolidinone antibiotic developed by Dong-A Pharmaceutical, licensed to Cubist Pharmaceuticals and Bayer for commercial development.
Sivextro is designed for the treatment of serious or life-threatening infections, and its listing applications are eligible for Qualified Infectious Disease Products (QIDP) and have obtained the approve of FDA for accelerated review. Sivextro's QIDP eligibility gives the drug exclusive five-year market exclusivity, in addition to its market exclusivity under the Food, Drug, and Cosmetic Act.
The safety and efficacy of Sivextro were evaluated in two clinical trials involving 1315 ABSSSI adult patients. Subjects were randomized to Sivextro or another antibiotic linezolid approved for the treatment of acute bacterial skin and skin structure infections (ABSSSI). The results showed that its clinical efficacy is equivalent to linezolid. However, it will cause less gastrointestinal adverse reactions and thrombocytopenia adverse reactions than linezolid. The incidence of drug resistance is also lower. Tedizolid has been shown to be more tolerant than vancomycin.
The most common side effects identified in clinical trials include nausea, headache, diarrhea, vomiting and dizziness. The safety and efficacy of Sivextro have not been evaluated in patients with reduced white blood cell levels (neutropenia), so alternative therapies should be considered for these patients. Sivextro is marketed by Cubist Pharmaceuticals, Inc., based in Lexington, Massachusetts.
Status of intellectual property: Compound patent ZL200480037612.2, protection period 2024.12.17 expires.
This information was edited by Xiao Nan from lookchem (2015-08-14).
Indications
Tedizolid phosphate is an oxazolidinone compound used in the treatment of acute bacterial skin and skin structure infections caused by the following gram-positive bacteria-sensitive strains: Staphylococcus aureus (including Methicillin-resistant and methicillin-susceptible strains), pyogenic streptococci, Streptococcus lactis, Streptococcus angustifolia (including Angina, Streptococcus intermedius and Streptococcus constellation), and Enterococcus faecalis.
State of Intellectual Property
(A) Administrative protection, new drug protection and new drug monitoring period
On August 9, 2013, Bayer Pharmaceuticals has filed a new drug application with CFDA.
(B) Domestic patent
1. Patented compounds
East Asia Pharmaceutical has applied for the compound patent in China under the application number is ZL200480037612.2. The date of application is December 17, 2004; the protection period will expire at 2024.12.17. Three subsequent divisional applications were further filed with the application numbers being 201010508824.1 (preparation), 201110304983.4, 201210155386.4.
On October 9, 2009, the Teresius Therapeutics Company has applied for a preparation method patent with the patent number of 200980140144.4.
2. Crystal patent
On February 3, 2010, Teulius Therapeutics applied for a crystalline form patent of free acid with the application number of 201080014363.0. Form I of the disclosed free acid has the advantage that it is more stable than the disodium salt and has no moisture absorption.
3. Formulation Composition Patents
The above-mentioned patent 200480037612.2 and its divisional application patent have disclosed the Tedizolid powder, tablet, capsule and injection.
The above-mentioned patent 201080014363.0 have disclosed the prescription of Tedizolid tablets and freeze-dried preparations.
Definition
ChEBI: A member of the class of pyridines that is pyridine which is substituted by a 2-methyl-2H-tetrazol-5-yl group at position 2 and by a 2-fluoro-4-[(5R)-5-(hydroxymethyl)-2-oxo-1,3-oxazolidin-3-yl]phenyl group at position 5
It is used as its phosphate pro-drug used for the treatment of acute bacterial skin and skin structure infections caused by certain susceptible bacteria, including Staphylococcus aureus (including methicillin-resistant strains (MRSA) and meth
cillin-susceptible strains), various Streptococcus species, and Enterococcus faecalis.
Biological Activity
tedizolid is an oxazolidinone antimicrobial agent with mic50 value of 0.5 μg/ml for mssa, mrsa, vr e. faecium and vr e. faecalis and 0.25 μg/ml for msse, mrse, pssp and prsp [1].the resistant gram-positive infection is a serious global health problem. for instant, the methicillin-resistant s. aureus (mrsa) has spread all over the world with rates ranging from 18 to 26 cases among 100,000 people. besides that, there come out a serious of resistant strains such as the linezolid-resistant s. aureus (lrsa) and the vancomycin-resistant s. aureus (vrsa). due to the unfavorable outcomes of the existed antibiotics, alternative treatments have been developed. tedizolid is a synthetic antibiotic that works based on the inhibition of protein synthesis. it binds to the 50s ribosome and inhibits the formation of the 70s complex [1].tedizolid showed potent bacteriostatic activity against many resistant gram-positive pathogens such as mssa, mrsa, s. pyogenes and s. pneumoniae. for the enterococcal and staphylococcal isolates, tedizolid displayed more than 4-fold higher potency than that of linezolid. it also showed inhibitory effects on a panel of 169 linezolid-resistant staphylococcal isolates with 79.2% inhibition at concentration of ≤ 4μg/ml. the mic values of tedizolid against linezolid-resistant staphylococci were in a range from 0.06 to 16 mg/l. besides that, tedizolid was found to be the inhibitors of human monoamine oxidase with ic50 values of 8.7 and 5.7 μm for mao-a and mao-b, respectively [1, 2 and 3].when treated in vivo, tedizolid was the active moiety converted from the pro-drug tedizolid phosphate. it was found that granulocytes could affect the antistaphylococcal effect of tedizolid. in neutropenic mice, the administration of tedizolid for 24 hours or 48 hours caused ed50 values of 25.2 and 35.7 mg/kg/day, respectively [1 and 4].
references
[1] kanafani z a, corey g r. tedizolid (tr-701): a new oxazolidinone with enhanced potency. expert opinion on investigational drugs, 2012, 21(4): 515-522.[2] rodríguez-avial i, culebras e, betriu c, et al. in vitro activity of tedizolid (tr-700) against linezolid-resistant staphylococci. journal of antimicrobial chemotherapy, 2012, 67(1): 167-169.[3] flanagan s, bartizal k, minassian s l, et al. in vitro, in vivo, and clinical studies of tedizolid to assess the potential for peripheral or central monoamine oxidase interactions. antimicrobial agents and chemotherapy, 2013, 57(7): 3060-3066.[4] louie a, liu w, kulawy r, et al. in vivo pharmacodynamics of torezolid phosphate (tr-701), a new oxazolidinone antibiotic, against methicillin-susceptible and methicillin-resistant staphylococcus aureus strains in a mouse thigh infection model. antimicrobial agents and chemotherapy, 2011, 55(7): 3453-3460.
Check Digit Verification of cas no
The CAS Registry Mumber 856866-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,6 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 856866-72:
(8*8)+(7*5)+(6*6)+(5*8)+(4*6)+(3*6)+(2*7)+(1*2)=233
233 % 10 = 3
So 856866-72-3 is a valid CAS Registry Number.
856866-72-3Relevant articles and documents
Refining process of tedizolid and preparation method of tedizolid phosphate
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Paragraph 0030-0032, (2021/08/07)
The invention belongs to the field of medicine synthesis, and discloses a refining process of tedizolid. According to the invention, a mixed solution of dichloromethane, toluene and ethanol is prepared, tedizolid generated through Suzuki reaction is purified through steps of liquid separation, filtration and the like, and the obtained tedizolid pure product is used for tedizolid phosphate synthesis. While the purity of tedizolid is ensured, the consumption of tedizolid in the refining process is reduced, the yield of tedizolid is improved, the utilization rate of raw materials is improved, the production cost is saved, the tedizolid with higher purity participates in synthesis of tedizolid phosphate, the side reaction in the tedizolid phosphate synthesis process is reduced, the purification difficulty of tedizolid phosphate is reduced, and the purity and the yield of tedizolid phosphate are improved. The method is suitable for refining tedizolid compounds, and is especially suitable for refining an intermediate tedizolid in a tedizolid phosphate synthesis process.
Preparation method of tedizolid phosphate and intermediate thereof
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, (2020/02/27)
The invention discloses a preparation method of tedizolid phosphate and an intermediate thereof. The preparation method of a tedizolid phosphate intermediate II comprises the following steps: 1, in anorganic solvent, under a condition of presence of a catalyst and zinc powder, performing a reaction on 3-fluorine-4-bromophenyl amino benzyl formate so as to obtain a solution of a tedizolid phosphate intermediate III; and 2, in an organic solvent, under a condition of presence of a palladium catalyst and a base, performing a coupling reaction on the solution of the tedizolid phosphate intermediate III obtained in the step 1 with 2-methyl-5-(5-bromopyridine-2-yl) tetrazole, so as to obtain the tedizolid phosphate intermediate II. The preparation method disclosed by the invention is free of toxic reagent, mild in reaction condition, safe to operate, environmentally friendly, high in yield, high in prepared product purity and low in production cost. Tedizolid phosphate prepared from the tedizolid phosphate intermediate II disclosed by the invention is high in yield, high in purity, capable of meeting raw material medicine standards and applicable to industrial production.
Preparation method of tedizolid phosphate
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Paragraph 0058; 0060; 0062; 0063; 0064; 0068, (2018/04/03)
The invention belongs to the field of pharmaceutical and chemical industry, and specifically relates to a preparation method of tedizolid phosphate. The compound shown as a formula Z1 is a tedizolid phosphate precursor, and is obtained in a cyclization reaction through catalyst catalysis by using X3 as a raw material. The preparation method of the compound shown as the formula Z1 comprises the following steps: carrying out the cyclization reaction on a compound shown as a formula X2 and a compound shown as a formula R under the existence of a catalyst and a solvent, so as to obtain the compound shown as a formula Z1; carrying out a phosphorylation reaction on the compound shown as the formula Z1 so as to obtain tedizolid phosphate. According to the preparation method disclosed by the invention, the compound with high boiling point such as DMPU is prevented from being used as the catalyst, and the dissolubility of the reaction system is improved through the addition of a mixed solvent,so that the reaction time is greatly shortened, and the compound is applicable for industrial production.
