Lincomycin Hydrochloride CAS 859-18-7

CAS Number

859-18-7

Grade

Highly Purified

MDL Number

MFCD00083647

Molecular Formula

C18H34N2O6S•HCl

Molecular Weight

443

EU Commodity Code

38220090

Shipping Temp

Storage Temp

4°C

(2S-trans)-Methyl 6,8-dideoxy-6-[[(1-methyl-4-propyl-2-pyrrolidinyl)carbonyl]amino]-1-thio-D-threo-a-D-galacto-octopyranoside; Lincocin hydrochloride

Lincomycin is a lincosamide antibiotic that comes from the actinomyces Streptomyces lincolnensis. It has been structurally modified by thionyl chloride to its more commonly known 7-chloro-7-deoxy derivative, clindamycin. It is available under the brand name of Lincobect and Lincocin in Pakistan.

Although similar in structure, antibacterial spectrum, and mechanism of action to macrolides, lincomycin is also effective against other organisms including actinomycetes, mycoplasma, and some species of Plasmodium. Because of its adverse effects and toxicity, it is rarely used today and reserved for patients allergic to penicillin or where bacteria have developed resistance.

Lincomycin is an antibiotic classified as a constituent of the lincosamide group, which typically feature a 6,8-dideoxy-6-aminooctose lincosamine.[1] In Lincomycin A, this sugar moiety (referred to as methylthiolincosamide) is linked via an amide bond to an amino acid derivative (referred to as propylhygric acid). Lincomycin biosynthesis occurs via a biphasic pathway producing propylproline and methylthiolincosamide followed by condensation of these subunits to N-demethyllincomycin and methyllation by S-adenosylmethionine to produce the antibiotic lincomycin.

In the biosynthesis of the amino acid moiety of lincomycin, tyrosine comprises seven of the nine carbons in the prophylhygric acid, while the remaining two carbons are added in reactions with S-adenosylmethionine.[2][3][4][5] Glucose is converted via glycolysis and the hexose monophosphate pathway to phosphoenolpyruvate and erythrose-4-phosphate, respectively, which are converted via the shikimate pathway to tyrosine and dihydroxyphenylalanine. Although the multistep conversion of dihydroxyphenylalanine to propylproline remains unknown, experiments involving accumulation of 1,2,3,6-tetradehydro-propylproline in mutants lacking a reductase requiring lincomycin cosynthetic factor suggests a biosynthetic scheme that Kuo and coworkers have modified from Brahme et al.[4][5] to accommodate the remaining steps leading to propylproline.[6][7]

Synonyms

(2S-trans)-Methyl 6,8-dideoxy-6-[[(1-methyl-4-propyl-2-pyrrolidinyl)carbonyl]amino]-1-thio-D-threo-a-D-galacto-octopyranoside; Lincocin hydrochloride

CAS No

859-18-7

Molecular Formula

C18H34N2O6S•HCl

Molecular Weight

443

Appearance

White to off-white powder

Purity

As reported

Infrared

Conforms to reference

Activity

≥790ug/mg (Anhydrous)

Water (KF)

3.1-4.6%

3.5-5.5

Optical Rotation

[a] = +135-150°

Residual Solvents

1-butanol: ≤5000ppm

Lincomycin B

≤5%

Endotoxin

≤0.50 IU/mg

Solubility

Water

Storage and Stability

May be stored at RT for short-term only. Long-term storage is recommended at 4°C. For maximum recovery of product, centrifuge the original vial prior to removing the cap.

References

1. Spízek J, Rezanka T (February 2004). "Lincomycin, cultivation of producing strains and biosynthesis". Appl. Microbiol. Biotechnol. 63 (5): 510–9. doi:10.1007/s00253-003-1431-3. PMID 14593504.|2. Argoudelis AD, Eble TE, Fox JA, Mason DJ (August 1969). "Studies on the biosynthesis of lincomycin. IV. The origin of methyl groups". Biochemistry 8 (8): 3408–11. doi:10.1021/bi00836a040. PMID 5809230.|3. Witz DF, Hessler EJ, Miller TL (March 1971). "Bioconversion of tyrosine into the propylhygric acid moity of lincomycin". Biochemistry 10 (7): 1128–33. doi:10.1021/bi00783a005. PMID 5553319.|4. Brahme NM, Gonzalez JE, Mizsak S, Rolls JR, Hessler EJ, Hurley LH (1984a) Biosynthesis of the lincomycins. 2. Studies using stable isotopes on the biosynthesis of methylthiolincosaminide moiety of lincomycin A. J Am Chem Soc 106:7878–7883.|5. Brahme NM, Gonzalez JE, Rolls JR, Hessler EJ, Mizsak S, Hurley LH (1984b) Biosynthesis of the lincomycins. 1. Studies using stable isotopes on the biosynthesis of the propyl- and ethyl-Lhygric aci moieties of lincomycin A and B. J Am Chem Soc 106:7873–7878.|6. Kuo MS, Yurek DA, Coats JH, Li GP (March 1989). "Isolation and identification of 7,8-didemethyl-8-hydroxy-5-deazariboflavin, an unusual cosynthetic factor in streptomycetes, from Streptomyces lincolnensis". J. Antibiot. 42 (3): 475–8. PMID 2708143.|7. Kuo MS, Yurek DA, Coats JH, Chung ST, Li GP (November 1992). "Isolation and identification of 3-propylidene-delta 1-pyrroline-5-carboxylic acid, a biosynthetic precursor of lincomycin". J. Antibiot. 45 (11): 1773–7. PMID 1468986.|8. Peschke U, Schmidt H, Zhang HZ, Piepersberg W (June 1995). "Molecular characterization of the lincomycin-production gene cluster of Streptomyces lincolnensis 78-11". Mol. Microbiol. 16 (6): 1137–56. doi:10.1111/j.1365-2958.1995.tb02338.x. PMID 8577249.|9. Pissowotzki K, Mansouri K, Piepersberg W (December 1991). "Genetics of streptomycin production in Streptomyces griseus: molecular structure and putative function of genes strELMB2N". Mol. Gen. Genet. 231 (1): 113–23. doi:10.1007/BF00293829. PMID 1661369.|10. Patt TE, Horvath BA (1985) Isolation and characterization of Ndemethyllincomycin methyltransferase. In: Abstracts, 13th International Congress of Biochemistry, Amsterdam, The Netherlands, August 25–30 1985

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L2289 Lincomycin Hydrochloride CAS: 859-18-7

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(2S-trans)-Methyl 6,8-dideoxy-6-[[(1-methyl-4-propyl-2-pyrrolidinyl)carbonyl]amino]-1-thio-D-threo-a-D-galacto-octopyranoside; Lincocin hydrochloride

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