119-04-0 Usage
Uses
Neomycin C is an aminoglycoside antibiotic found in many topical medications. Neomycin has been used as a preventive measure for hepatic encephalopathy and hypercholesterolemia.
Definition
ChEBI: A tetracyclic antibacterial agent derived from neomycin, being a glycoside ester of neamine and neobiosamine B.
General Description
Chemical structure: aminoglycoside
Biochem/physiol Actions
Neomycin is an aminoglycoside antibiotic, produced by Streptomyces containing a minimum of 85% neomycin B. It acts as a selection agent for prokaryotic cells transformed using the neo selectable marker gene. Neomycin trisulfate is used to study the cytototoxic side effects of antibiotics, platelet-derived growth factor responses in certain fibroblasts and extraction of nuclear phosphatidylinositol 4,5-bisphosphate-interacting proteins. This product is recommended for use in cell culture applications at 5 mL/L.Mode of action: This product acts by binding to the 30S and 50S subunits, causing miscoding and inhibiting initiation and elongation during protein synthesis. Neomycin also blocks voltage-sensitive Ca2+ channels without affecting the Na+/Ca2+ antiporter in neurons.Antimicrobial spectrum: Neomycin acts against both gram-positive and gram-negative bacteria
Check Digit Verification of cas no
The CAS Registry Mumber 119-04-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,1 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 119-04:
(5*1)+(4*1)+(3*9)+(2*0)+(1*4)=40
40 % 10 = 0
So 119-04-0 is a valid CAS Registry Number.
InChI:InChI=1/C23H46N6O13/c24-2-7-13(32)15(34)10(28)21(37-7)40-18-6(27)1-5(26)12(31)20(18)42-23-17(36)19(9(4-30)39-23)41-22-11(29)16(35)14(33)8(3-25)38-22/h5-23,30-36H,1-4,24-29H2/t5-,6+,7-,8+,9-,10-,11-,12+,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23+/m1/s1
119-04-0Relevant articles and documents
Characterization of a radical S-adenosyl-l-methionine epimerase, NeoN, in the last step of neomycin B biosynthesis
Kudo, Fumitaka,Hoshi, Shota,Kawashima, Taiki,Kamachi, Toshiaki,Eguchi, Tadashi
, p. 13909 - 13915 (2014)
The last step of neomycin biosynthesis is the epimerization at C-5 of neomycin C to give neomycin B. A candidate enzyme responsible for the epimerization was a putative radical S-adenosyl-l-methionine (SAM) enzyme, NeoN, which is uniquely encoded in the n
TOTAL SYNTHESIS OF NEOMYCIN B
Usui, Takayuki,Umezawa, Sumio
, p. 133 - 144 (2007/10/02)
Total synthesis of neomycin B, a pseudo-tetrasaccharide aminoglycoside antibiotic, has been achieved through two key glycosylation reactions.Coupling of 3-O-acetyl-2,6-diazido-4-O-benzyl-2,6-dideoxy-L-idopyranosyl chloride with 5-O-benzoyl-1,2-O-isopropylidene-α-D-ribofuranose under modified Koenigs-Knorr conditions gave 70percent of the desired β-L disaccharide (3) and corresponding to neobiosamine in structure.After deisopropylidenation of 3 and acetylation, 1,2-di-O-acetyl-3-O-(3-O-acetyl-2,6-diazido-4-O-benzyl-2,6-dideoxy-β-L-idopyranosyl)-5-O-benzoyl-D-ribofuranose was coupled to HO-5 of 3,2',6'-tri-N-(benzyloxycarbonyl)-1-N:6-O-carbonyl-3',4'-di-O-(o-methoxybenzoyl)neamine, using trimethylsilyl trifluoromethanesulfonate, to give 60percent of the pseudo-tetrasaccharide 19 possessing the framework and masked functionality corresponding to neomycin B.Deblocking and reduction of the azido groups then gave neomycin B.