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32385-11-8

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32385-11-8 Usage

Chemical Properties

Off-White Solid

Originator

Pathomyci n,Byk-Essex,W. Germany,1976

Uses

Different sources of media describe the Uses of 32385-11-8 differently. You can refer to the following data:
1. Sisomicin is an Antibacterial. Gentamicin-like aminoglycoside antibiotic; has broad spectrum antibiotic activity.
2. Antibacterial. Gentamicin-like aminoglycoside antibiotic; has broad spectrum antibiotic activity
3. antibacterial, binds to ribosomes

Manufacturing Process

Tank fermentation of Micromonospora inyoensis - Germination stage 1: Under aseptic conditions, add a lyophilized culture (or cells obtained from a slant culture) of M. inyoensis to a 300 ml shake flask containing 100 ml of the following sterile medium: Beef extract 3 g Tryptone 5 g Yeast extract 5 g Dextrose 1 g Starch 24 g Calcium carbonate 2 g Tap water 1,000 ml Incubate the flask and its contents for 5 days at 35°C on a rotary shaker (280 rpm, 2'' stroke).Germination stage 2: Aseptically transfer 25 ml of the fermentation medium of Germination stage 1 to a 2-l shake flask containing 500 ml of the above described sterile germination medium. Incubate the flask and its contents for 3 days at 28{]C on a rotary shaker (280 rpm, 2'' stroke).Fermentation stage: Aseptically transfer 500 ml of the medium obtained from Germination stage 2 to a 14-l fermentation tank containing 9.5 l of the following sterile medium: Dextrin 50 g Dextrose 5 g Soybean meal 35 g Calcium carbonate 7 g Cobalt chloride 10-6M Tap water 1,000 ml Antifoam (GE 60) 10 ml Prior to sterilizing the above described medium, adjust the pH to 8. Aerobically ferment for 66 to 90 hours while stirring at 250 rpm with air input at 4.5 l/l/min and 25 psi. The potency of the antibiotic produced at the end of this period reaches a peak of 150 to 225 mcm/ml and remains relatively constant. The pH of the fermentation medium changes slightly during the antibiotic production, varying in the range of 6.8 to 7.3.Isolation of Antibiotic 66-40 - The whole broth is adjusted to pH 2 with 6N sulfuric acid. (For the purpose of this example, quantities are given in terms of 170 l of fermentation broth obtained by pooling acidified broth from 17 batches.) The acidified broth is stirred for about 15 minutes and then filtered. Wash the mycelium with water and combine the washings with the filtrate. Adjust the pH of the filtrate to 7 with 6N ammonium hydroxide.To the neutralized filtrate, add sufficient oxalic acid to precipitate calcium and filter. Reneutralize the filtrate with ammonium hydroxide. Charge the filtrate onto a cationic exchange adsorption column containing 1,500 to 2,000 g of IRC-50 Amberlite in its ammonium form. Discard the eluate, wash the resin with water, and elute with 2N ammonium hydroxide. Collect 400 ml fractions and monitor by disc testing with S. aureus ATCC-6538P. Combine active fractions and evaporate to dryness under vacuum obtaining about 28 g of crude Antibiotic 6640 having an activity of about 500 mcm/g.Purification of Antibiotic 66-40 - Dissolve 28 g of crude Antibiotic 6640 in 100 ml of distilled water and charge to an anion exchange adsorption column (Dowex 1 x 2) in the hydroxyl form. Slurry 2,000 g of the resin in water into a column 2,5" in diameter and 36" high. Elute the column with distilled water at a rate of about 23 ml/min collecting 100 ml fractions and monitor with a conductivity meter and by disc testing against Staphylococcus aureus.The disc testing provides a gross separation of antibiotic-containing eluate fractions from those devoid of antibiotic. To insure that the fractions are properly combined, a portion of each fraction is paper chromatographed using the lower phase of a chloroform:methanol:17% ammonium hydroxide system (2:1:1). Each paper is sprayed with ninhydrin and the eluates containing like material are combined and lyophilized yielding about 5.7 g of Antibiotic 66-40 assaying about 900 mcm/mg.

Brand name

Siseptin (Schering).

Therapeutic Function

Antibiotic

Antimicrobial activity

A fermentation product of Micromonospora inyoensis. A dehydro derivative of gentamicin C1a, supplied as the sulfate salt. It is virtually identical to gentamicin in activity and pharmacokinetic behavior. An intramuscular dose of 1–1.5 mg/kg achieves a peak plasma concentration of 1.5–9.0 mg/L after 0.5–1 h. It is widely distributed in body water, but concentrations in CSF are low, even in the presence of inflammation. The plasma half-life is 2.5 h and protein binding is <10%. It is eliminated almost completely over 24 h in the glomerular filtrate. Excretion decreases proportionately with renal impairment and because of the virtual identity of the behavior of the two compounds, a gentamicin nomogram can be used to adjust dosage. About 40% of the dose is eliminated during a 6-h dialysis period, during which the elimination half-life falls to about 8 h. Mild and reversible impairment of renal function occurs in about 5% of patients. Nephrotoxicity is more likely to be seen in those with pre-existing renal disease or treated concurrently with other potentially nephrotoxic drugs. Ototoxicity mainly affecting vestibular function has been found in about 1% of patients. Neuromuscular blockade and other effects common to aminoglycosides including rashes, paresthesiae, eosinophilia and abnormal liver function tests have been described. Its uses are identical to those of gentamicin, which it closely resembles. It is of limited availability.

General Description

This aminoglycoside antibiotic is produced by Micromonospora inyoensis. Sisomicin is very similar to gentamicin in its antimicrobial spectrum and all other properties. It is as active as gentamicin against all Enterobacteriaceae . Against Pseudomonas aeruginosa, sisomicin is more active than gentamicin, but not as active as tobramycin. There is almost complete cross-resistance between gentamicin and sisomicin with most Gram-negative bacilli. The reason for this is that sisomicin, like gentamicin, is affected by at least eight of the plasmid-coded modifying enzymes, which can be produced by Gram-negative bacilli). On the other hand, sisomicin is active against some organisms which resist gentamicin by nonenzymatic mechanisms. Sisomicin does not offer significant advantages over gentamicin. It has had limited clinical trials, and has been available commercially in Europe as a sulfate, but not in the USA, UK, and Australia. The drug dosage of sisomicin (3–6 mg/kg/day), its methods of administration, and pharmacokinetics, are similar to those of gentamicin. The toxicity of these two drugs is also probably about the same. Results of treatment of conditions, such as urinary tract infections or Gramnegative bacillary septicemias, have, in general, been similar to what would be expected from an identical gentamicin regimen.

Check Digit Verification of cas no

The CAS Registry Mumber 32385-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,2,3,8 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 32385-11:
(7*3)+(6*2)+(5*3)+(4*8)+(3*5)+(2*1)+(1*1)=98
98 % 10 = 8
So 32385-11-8 is a valid CAS Registry Number.
InChI:InChI=1/C19H37N5O7.H2O4S/c1-19(27)7-28-18(13(26)16(19)24-2)31-15-11(23)5-10(22)14(12(15)25)30-17-9(21)4-3-8(6-20)29-17;1-5(2,3)4/h3,9-18,24-27H,4-7,20-23H2,1-2H3;(H2,1,2,3,4)/t9-,10+,11-,12+,13?,14-,15+,16-,17-,18-,19+;/m1./s1

32385-11-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name sisomycin

1.2 Other means of identification

Product number -
Other names Rickamicin

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:32385-11-8 SDS

32385-11-8Relevant articles and documents

Synthesis method of plazomicin or salt of plazomicin

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Paragraph 0026-0029, (2020/01/14)

The invention relates to a synthesis method of plazomicin or salt of the plazomicin. Specifically, the synthesis method uses a compound 6 as a raw material, six steps of exchange reaction, amino protection reaction, PNZ protecting group removal reaction, reductive amination reaction, degradation reaction and amino-protecting group removal reaction are sequentially performed, and finally the plazomicin or the salt of the plazomicin is prepared. The details of specific steps are described in the description. The synthesis method has the advantages of being few in steps, high in reaction selectivity, simple in operation, low in material cost and the like, and is very suitable for industrial application.

TREATMENT OF URINARY TRACT INFECTIONS WITH ANTIBACTERIAL AMINOGLYCOSIDE COMPOUNDS

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Page/Page column 51, (2010/12/17)

A method for treating a urinary tract infection in a mammal in need thereof is disclosed, the method comprising administering to the mammal an effective amount of an antibacterial aminoglycoside compound.

Process for the preparation of purified aminoglycoside antibiotics

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, (2008/06/13)

The invention relates to an improved process for the isolation and purification of aminoglycoside antibiotics of Formula (I) as defined herein combining selective lipophilization of the compound of Formula (I) in the crude product obtained by fermentation with controlled liquid/liquid extraction.

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