药品详细
Ertapenem (Ertapenem )
化学结构式图
中文名
Ertapenem
英文名
Ertapenem
分子式
Not Available
化学名
(4R,5S,6S)-3-{[(3S,5S)-5-[(3-carboxyphenyl)carbamoyl]pyrrolidin-3-yl]sulfanyl}-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
分子量
Average: 475.515
Monoisotopic: 475.141320859
Monoisotopic: 475.141320859
CAS号
153832-46-3
ATC分类
J01D Other Beta- lactam Antibacterials
药物类型
small molecule
阶段
商品名
Invanz;
同义名
ertapenem;MK-0826;
基本介绍
Ertapenem is a carbapenem antibiotic marketed by Merck as Invanz®. It is structurally very similar to meropenem in that it possess a 1-beta-methyl group. [Wikipedia]
生产厂家
- Merck and co inc
封装厂家
参考
| Synthesis Reference | Not Available |
| General Reference | Not Available |
剂型
| Form | Route | Strength |
|---|---|---|
| Powder, for solution | Intravenous |
规格
| Unit description | Cost | Unit |
|---|---|---|
| Invanz 1 gm add-vantage vial | 72.85 USD | vial |
| Invanz 1 gm vial | 69.4 USD | vial |
化合物类型
| Type | small molecule |
| Classes |
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| Substructures |
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适应症
antibacterials 抗细菌;
药理
| Indication | For the treatment the following moderate to severe infections caused by susceptible isolates of the designated microorganisms: (1) complicated intra-abdominal infections due to Escherichia coli, Clostridium clostridioforme, Eubacterium lentum, Peptostreptococcus species, Bacteroides fragilis, Bacteroides distasonis, Bacteroides ovatus, Bacteroides thetaiotaomicron, or Bacteroides uniformis, (2) complicated skin and skin structure infections, including diabetic foot infections without osteomyelitis due to Staphylococcus aureus (methicillin susceptible isolates only), Streptococcus agalactiae, Streptococcus pyogenes, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Bacteroides fragilis, Peptostreptococcus species, Porphyromonas asaccharolytica, or Prevotella bivia, (3) community acquired pneumonia due to Streptococcus pneumoniae (penicillin susceptible isolates only) including cases with concurrent bacteremia, Haemophilus influenzae (beta-lactamase negative isolates only), or Moraxella catarrhalis, (4) complicated urinary tract infections including pyelonephritis due to Escherichia coli, including cases with concurrent bacteremia, or Klebsiella pneumoniae, (5) acute pelvic infections including postpartum endomyometritis, septic abortion and post surgical gynecologic infections due to Streptococcus agalactiae, Escherichia coli, Bacteroides fragilis, Porphyromonas asaccharolytica, Peptostreptococcus species, or Prevotella bivia. |
| Pharmacodynamics | Ertapenem has in vitro activity against gram-positive and gram-negative aerobic and anaerobic bacteria. |
| Mechanism of action | The bactericidal activity of ertapenem results from the inhibition of cell wall synthesis and is mediated through ertapenem binding to penicillin binding proteins (PBPs). In Escherichia coli, it has strong affinity toward PBPs 1a, 1b, 2, 3, 4 and 5 with preference for PBPs 2 and 3. Ertapenem is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases. Ertapenem is hydrolyzed by metallo-beta-lactamases. |
| Absorption | The mean bioavailability is approximately 90%. |
| Volume of distribution |
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| Protein binding | Ertapenem is highly bound to human plasma proteins, primarily albumin, in a concentration-dependent manner. The protein binding of ertapenem decreases as plasma concentrations increase. At a plasma concentration of <100 µg/mL, approximately 95% of ertapenem is protein bound. Protein binding of ertapenem decreases to approximately 85% at an approximate plasma concentration of 300 µg/mL. |
| Metabolism |
The major metabolite is the inactive ring-opened derivative formed by hydrolysis of the β-lactam ring. Ertapenem did not inhibit metabolism mediated by cytochrome P450 (CYP) isoforms 1A2, 2C9, 2C19, 2D6, 2E1, or 3A4 when evaluated by in vitro studies in human liver microsomes. |
| Route of elimination | Of the 80% recovered in urine, approximately 38% is excreted as unchanged drug and approximately 37% as the ring-opened metabolite. |
| Half life | The mean plasma half-life is approximately 4 hours. |
| Clearance |
|
| Toxicity | Not Available |
| Affected organisms |
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| Pathways | Not Available |
理化性质
| Properties | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| State | solid | ||||||||||||||||||||||||||||||||||||
| Melting point | Not Available | ||||||||||||||||||||||||||||||||||||
| Experimental Properties |
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| Predicted Properties |
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药物相互作用
食物相互作用
Not Available
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