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Telithromycin Produkt Beschreibung

Telithromycin Struktur
191114-48-4
CAS-Nr.
191114-48-4
Englisch Name:
Telithromycin
Synonyma:
KETEK;RU 66647;HMR 3647;TELITHROMYCIN;TelithroMycin 90%;Telithromycin (90%);Telithromycin USP/EP/BP;Telithromycin 90% (10mM in DMSO);(1R,2R,4R,6S,7R,8R,10R,13R,14S)-7-[(2S,3R,4S,6R)-4-Dimethylamino-3-hydroxy-6-methyloxan-2-yl]oxy-13-ethyl-6-methoxy-2,4,6,8,10,14-hexamethyl-17-[4-(4-pyridin-3-ylimidazol-1-yl)butyl]-12,15-dioxa-17-azabicyclo[12.3.0]heptadecane-3,9,11,16-tetrone;2H-Oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(1H,7H,9H)-tetrone,4-ethyloctahydro-11-Methoxy-3a,7,9,11,13,15-hexaMethyl-1-[4-[4-(3-pyridinyl)-1H-iMidazol-1-yl]butyl]-10-[[3,4,6-trideoxy-3-(diMethylaMino)-b-D-xylo-hexopyranosyl]oxy]-,(3aS,4R,7R,9R,10R,11R,1
CBNumber:
CB1482102
Summenformel:
C43H65N5O10
Molgewicht:
812
MOL-Datei:
191114-48-4.mol

Telithromycin Eigenschaften

Schmelzpunkt:
176-188 C
Siedepunkt:
966℃
Dichte
1.26±0.1 g/cm3(Predicted)
RTECS-Nr.
KF4674500
Flammpunkt:
>110°(230°F)
storage temp. 
Sealed in dry,Store in freezer, under -20°C
pka
10.85±0.70(Predicted)
Wasserlöslichkeit
Sparingly soluble in water
CAS Datenbank
191114-48-4(CAS DataBase Reference)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi
R-Sätze: 36/37/38
S-Sätze: 26-36
HazardClass  9
Giftige Stoffe Daten 191114-48-4(Hazardous Substances Data)
Bildanzeige (GHS)
Alarmwort
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
H400 Sehr giftig für Wasserorganismen. Kurzfristig (akut) gewässergefährdend Kategorie 1 Warnung P273, P391, P501
H410 Sehr giftig für Wasserorganismen mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 1 Warnung P273, P391, P501
Sicherheit
P261 Einatmen von Staub vermeiden.
P304+P340 BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P405 Unter Verschluss aufbewahren.

Telithromycin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Beschreibung

Telithromycin was first launched in Germany as a once-daily oral treatment for respiratory infections including community-acquired pneumonia, acute bacterial exacerbations of chronic bronchitis, acute sinusitis and tonsillitis/pharyngitis. This semisynthetic derivative of the natural macrolide erythromycin is the first marketed ketolide, a new class of antibiotics featuring a C3-ketone instead of the L-cladinose group. The 14-membered ring antibacterial agent prevents bacterial protein synthesis by binding to two domains of the 50S subunit of bacterial ribosomes. It shows potent in vitro activity against common respiratory pathogens including Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis and Streptococcus pyogenes as well as other atypical pathogens. The 3-keto group confers increased acidic stability and reduced induction of macrolide-lincosamide-streptogramin B resistance that is frequently observed with macrolides. The substituted C11-C12 carbamate residue appears not only to increase affinity for the ribosomal binding site but also to stabilize the compound against esterase hydrolysis and avoid resistance due to elimination of macrolides from the cell by an efflux pump encoded by the mef gene in certain pathogens. Telithromycin is both a competitive inhibitor and a substrate of CYP3A4. However, unlike several macrolides such as troleandomycin, it does not form a stable inhibitory CYP P-450 Fe2+-nitrosoalkane metabolite complex which is potentially hepatotoxic. The drug is well tolerated and well distributed into pulmonary tissues, bronchial secretions, tonsils and saliva. It turns out to be highly concentrated in azurophil granules of polymorphonuclear neutrophils thereby facilitating its delivery to the phagocytosed bacteria.

Chemische Eigenschaften

Pale Beige Solid

Originator

Aventis (France)

Verwenden

Telithromycin represents the first member of the current generation of erythromycin descendants, belonging to the ketolide class. The ketolides are characterised by the hydrolysis of the cladinose sugar and subsequent oxidation of the alcohol to a ketone. Telithromycin is acid stabile and has good activity against erythromycin-resistant S. aureus, and improved pharmacokinetics.

Verwenden

A ketolide antibiotic, used to treat respiratory infections

Trademarks

Ketek (Sanofi Aventis).

Antimicrobial activity

The spectrum covers Gram-positive and Gramnegative cocci, Gram-positive bacilli, fastidious Gram-negative bacilli, atypical mycobacteria, M. leprae, H. pylori, anaerobes, T. pallidum, intracellular pathogens and atypical organisms.
It exhibits bactericidal activity in vitro against isolates of Str. pneumoniae regardless of the underlying resistance to penicillin G, erythromycin A and other agents. It is 2–4 times more active than clarithromycin against erythromycin A-susceptible isolates of Str. pneumoniae and other streptococci. Against H. influenzae the MIC range is 1–4 mg/L. It also exhibits good in-vitro activity against Coxiella burnetii (MIC 1 mg/L) and various Gram-positive species, including viridans streptococci (MIC ≤0.015–0.25 mg/L), C. diphtheriae (MIC 0.004–0.008 mg/L) and Listeria spp. (MIC 0.03–0.25 mg/L).

Acquired resistance

It retains activity against isolates resistant to erythromycin A. Str. pneumoniae and Str. pyogenes isolates for which the MIC of telithromycin is above the resistance breakpoint of 2 mg/L are presently rare. It is not active against Staph. aureus isolates that owe their resistance to erythromycin to constitutive methylation of adenine 2058 on domain V of the peptidyl transferase loop.

Allgemeine Beschreibung

Telithromycin (Ketek) is an orally bioavailable macrolide.The antibiotic is semisynthetic. Telithromycin is classifiedas a ketolide, and it differs chemically from the macrolidegroup of antibacterials by the lack of α-L-cladinose at 3-position of the erythronolide A ring, resulting in a 3-ketofunction. It is further characterized by imidazolyl andpyridyl rings inked to the macrolide nucleus through a butylchain. The mechanism of action of telithromycin is the sameas that of the macrolide class.
Telithromycin causes a blockade of protein synthesis bybinding to domains II and V of 23S rRNA of the 50S ribosomalsubunit. Because telithromycin binds at domain II,activity against Gram-positive cocci is retained in the presenceof resistance mediated by methylases that alter thedomain V binding site. The antibiotic is also believed to inhibitthe assembly of ribosomes. Resistance to telithromycinoccurs because of riboprotein mutations.

Pharmazeutische Anwendungen

A 14-membered-ring ketolide, obtained by semisynthesis from erythromycin A. Formulated for oral administration.

Pharmakokinetik

Oral absorption :90%
Cmax 800 mg oral :1.9–2.27 mg/L (steady state after 2–3 days)
Plasma half-life: 10–12 h
Volume of distribution :210 L
Plasma protein binding:60–70%
After oral administration the absolute bioavailability is 57% in both young and elderly subjects. The rate and extent of absorption are not influenced by food. In a study of ascending doses administered to healthy volunteers, peak plasma concentration ranged from 0.8 mg/L (400 mg dose) to 6 mg/L (2400 mg dose). The peak plasma concentration was reached after 1–2 h. The apparent elimination half-lives ranged from 10 to 14 h, with an AUC of 2.6 mg.h/L (400 mg dose) to 43.3 mg.h/L (2400 mg dose). After repeated oral doses the ratios between day 1 and day 10 ranged from 1.3 to 1.5. After once-daily oral dosing with 800 mg, the AUC is 8.25 mg.h/L.

Nebenwirkungen

It is generally well tolerated. The main adverse event is diarrhea.

Telithromycin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Telithromycin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 150)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29961 58
BOC Sciences
1-631-485-4226
1-631-614-7828 inquiry@bocsci.com United States 19753 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47496 58
Shaanxi Dideu Medichem Co. Ltd
13772537765
029-88380327 1010@dideu.com CHINA 3993 58
Zhuozhou Wenxi import and Export Co., Ltd
+8613111626072 (WhatsApp)
Wechat: +8613111626072 Wickr me: waynehu zzwenxi@126.com CHINA 13187 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
HANGZHOU CLAP TECHNOLOGY CO.,LTD
13588875226 86-571-88216897、88216896
86-571-88216895 sales@hzclap.com CHINA 6469 58
Shaanxi Dideu Medichem Co. Ltd
18192503167 +86-29-89586680
+86-29-88380327 1005@dideu.com CHINA 9937 58

191114-48-4()Verwandte Suche:


  • (1R,2R,4R,6S,7R,8R,10R,13R,14S)-7-[(2S,3R,4S,6R)-4-Dimethylamino-3-hydroxy-6-methyloxan-2-yl]oxy-13-ethyl-6-methoxy-2,4,6,8,10,14-hexamethyl-17-[4-(4-pyridin-3-ylimidazol-1-yl)butyl]-12,15-dioxa-17-azabicyclo[12.3.0]heptadecane-3,9,11,16-tetrone
  • KETEK
  • (3aS,4R,7R,9R,10R,11R,13R,15R,15aR)-4-Ethyloctahydro-11-Methoxy-3a,7,9,11,13,15-hexaMethyl-1-[4-[4-(3-pyridinyl)-1H-iMidazol-1-yl]butyl]-10-[[3,4,6-trideoxy-3-(diMethylaMino)-β-D-xylo-hexopyranosyl]oxy]-2H-oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(1H,7H,9H)tetrone
  • HMR 3647
  • RU 66647
  • 2H-Oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(1H,7H,9H)-tetrone,4-ethyloctahydro-11-Methoxy-3a,7,9,11,13,15-hexaMethyl-1-[4-[4-(3-pyridinyl)-1H-iMidazol-1-yl]butyl]-10-[[3,4,6-trideoxy-3-(diMethylaMino)-b-D-xylo-hexopyranosyl]oxy]-,(3aS,4R,7R,9R,10R,11R,1
  • TELITHROMYCIN
  • TelithroMycin 90%
  • 2H-Oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(1H,7H,9H)-tetrone, 4-ethyloctahydro-11-methoxy-3a,7,9,11,13,15-hexamethyl-1-[4-[4-(3-pyridinyl)-1H-imidazol-1-yl]butyl]-10-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-, (3aS,4R,7R,9R,10R,11R,13R,15R,15aR)-
  • Telithromycin USP/EP/BP
  • Telithromycin (90%)
  • Telithromycin 90% (10mM in DMSO)
  • 191114-48-4
  • C43H65N5O10
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