Imipenem Monohydrate

Imipenem Monohydrate

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Imipenem Monohydrate
Category Antibiotics
Catalog number BBF-04641
CAS 74431-23-5
Molecular Weight 317.36
Molecular Formula C12H17N3O4S.H2O
Purity 98%

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BBF-04641 500 mg $199 In stock

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Description

Imipenem is an intravenous β-lactam antibiotic. It is the first member of the carbapenem class of antibiotics. Imipenem is discovered via a lengthy trial-and-error search for a more stable version of the natural product thienamycin, which is produced by the bacterium Streptomyces cattleya. Imipenem has a broad spectrum of activity against aerobic and anaerobic, Gram-positive and Gram-negative bacteria. It is particularly important for its activity against Pseudomonas aeruginosa and the Enterococcus species, but it is not active against MRSA.

Specification

Related CAS 64221-86-9 (anhydrous)
Synonyms (5R,6S)-6-[(1R)-1-hydroxyethyl]-3-[[2-[(iminomethyl)amino]ethyl]thio]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, monohydrate; N-Formimidoyl Thienamycin; MK-787; MK 787; MK787
Shelf Life 3 years
Storage Store at -20°C
IUPAC Name (5R,6S)-3-[2-(aminomethylideneamino)ethylsulfanyl]-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid;hydrate
Canonical SMILES CC(C1C2CC(=C(N2C1=O)C(=O)O)SCCN=CN)O.O
InChI InChI=1S/C12H17N3O4S.H2O/c1-6(16)9-7-4-8(20-3-2-14-5-13)10(12(18)19)15(7)11(9)17;/h5-7,9,16H,2-4H2,1H3,(H2,13,14)(H,18,19);1H2/t6-,7-,9-;/m1./s1
InChI Key GSOSVVULSKVSLQ-JJVRHELESA-N

Properties

Appearance Off-white to Pale Yellow Solid
Application Anti-Bacterial Agents
Antibiotic Activity Spectrum Gram-positive bacteria; Gram-negative bacteria
Boiling Point 567.3°C at 760 mmHg
Melting Point 193-198°C
Solubility Soluble in DMSO, Methanol

Toxicity

Carcinogenicity No indication of carcinogenicity to humans (not listed by IARC).
Mechanism Of Toxicity Imipenem acts as an antimicrobial through the inhibition of cell wall synthesis of various gram-positive and gram-negative bacteria. This inhibition of cell wall synthesis in gram-negative bateria is attained by binding to pencillin binding proteins (PBPs). In E. coli and selected strains of P. aeruginosa, imipenem has shown to have the highest affinity to PBP-2, PBP-1a, and PBP-1b. This preferential binding to PBP-2 and PBP-1b results in the direct conversion of the individual cell to a spheroblast, which leads to rapid cell lysis and death without filament formation.

Reference Reading

1.Primaxin in the treatment of acute bacterial pneumonia in adults.
Gebhart RJ;Duma RJ;Patterson PM;Bagett JW;Williams DS J Antimicrob Chemother. 1985 Feb;15(2):233-8.
Imipenem (N-Formimidoyl thienamycin) (MK-0787) is a new beta-lactam carbapenem antibiotic. When it is combined with the renal dipeptidase inhibitor cilastatin (MK-0791) the combination is known as primaxin. In this study 28 adult patients (24 males and 4 females) with acute bacterial pneumonia were treated with primaxin. Twenty-one patients were evaluable and 20 (95%) were clinically cured of their pneumonia. Bacteriological cures were demonstrated in 84% of the cases. One patient with a susceptible Pseudomonas aeruginosa failed. Major complications or toxic reactions included antibiotic associated diarrhoea in one patient; hypotension in one patient; increased grand mal seizures in one patient and elevated liver function studies in one patient. Results of this study suggest that primaxin will be useful in the treatment of a variety of serious Gram-positive and Gram-negative pneumonias. The true incidence of possible toxic reactions with this drug is not known at this time and awaits further experience.
2.[Fundamental and clinical studies on imipenem/cilastatin sodium in the field of pediatrics].
Nakashima T;Nakashima S;Hayakawa F;Miyachi Y;Hakamada S;Kuno K Jpn J Antibiot. 1986 Jul;39(7):1828-46.
Fundamental and clinical studies on imipenem/cilastatin sodium (MK-0787/MK-0791) were performed in pediatric patients with infections. Results obtained were summarized below. The mean plasma half-life of MK-0787 was 0.84 hour with a dosage of 10 mg/kg and 0.90 hour with a dosage of 20 mg/kg. Mean plasma half-lives of MK-0791 were 0.40 hour and 0.71 hour for dosages of 10 mg/kg and 20 mg/kg, respectively. Urinary recovery of both MK-0787 and MK-0791 was high. The antibacterial activity of MK-0787 against clinically isolated organisms was determined. The MK-0787 was bactericidal against a broad spectrum of both Gram-positive and Gram-negative pathogens. The MK-0787/MK-0791 was administered to 32 pediatric patients with various infections. The overall clinical efficacy rate was 96.9%. Side effects observed were loose stools in one patient, diarrhea in another and slight elevations of platelet and direct bilirubin, and eosinophilia were observed in 3 patients, respectively.
3.[Fundamental and clinical studies on imipenem/cilastatin sodium in the pediatric field].
Toyonaga Y;Sugita M;Tsuda T;Takahashi T;Hori M Jpn J Antibiot. 1986 Jul;39(7):1765-86.
Fundamental and clinical studies were performed on a newly developed carbapenem antibiotic, imipenem/cilastatin sodium (MK-0787/MK-0791), and results were summarized as follows. The antibacterial activity of MK-0787 at an inoculum of 10(6) cells/ml against strains of S. aureus which were sensitive or resistant to cefazolin (CEZ), E. coli, P. mirabilis, K. pneumoniae, S. marcescens and P. aeruginosa were determined and compared with activities of ceftazidime (CAZ), CEZ, cefmetazole (CMZ), ceftizoxime (CZX), latamoxef (LMOX), cefamandole (CMD), cefoperazone (CPZ), cefsulodin (CFS) and piperacillin (PIPC). The peak MIC of MK-0787 was less than or equal to 0.024 micrograms/ml against S. aureus, which were sensitive or resistant to CEZ, 0.10 micrograms/ml against E. coli, P. mirabilis, or K. pneumoniae, 0.39 micrograms/ml against S. marcescens and 1.56 micrograms/ml against P. aeruginosa. The antibacterial activity of MK-0787 against these bacteria was, on the whole, superior to that of CAZ, CEZ, CMZ, CZX, LMOX, CMD, CPZ, CFS or PIPC. The pharmacokinetics of MK-0787/MK-0791 was studied in 10 children at dose levels of 10 mg/10 mg/kg and 20 mg/20 mg/kg by a 30-minute intravenous drip infusion.

Spectrum

Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive

Experimental Conditions

Ionization Mode: Positive
Ionization Energy: 70 eV
Chromatography Type: Gas Chromatography Column (GC)
Instrument Type: Single quadrupole, spectrum predicted by CFM-ID(EI)
Mass Resolution: 0.0001 Da
Molecular Formula: C12H17N3O4S
Molecular Weight (Monoisotopic Mass): 299.094 Da
Molecular Weight (Avergae Mass): 299.346 Da

Predicted LC-MS/MS Spectrum - 10V, Positive

Experimental Conditions

Ionization Mode: Positive
Collision Energy: 10 eV
Instrument Type: QTOF (generic), spectrum predicted by CFM-ID
Mass Resolution: 0.0001 Da
Molecular Formula: C12H17N3O4S
Molecular Weight (Monoisotopic Mass): 299.094 Da
Molecular Weight (Avergae Mass): 299.346 Da

1H NMR Spectrum

Experimental Conditions

Solvent: D2O
Nucleus: 1H
Frequency: 100

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