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Design of Novel Carboxamides of Eremomycin and Vancomycin with 4- or 3-Amino Methyl Phenyl Boric Acid and Their Investigation

Abstract

Amidation of the end carboxyl group of eremomycin and vancomycin by pinacolinic 4- or 3-amino methyl phenyl boron acids esters in the presence of the condensing reagent PyBOP resulted in formation of novel carboxamides of the antibiotics (IIIa-VIa). After elimination of the pinacolinic group under mild hydrolysis in weak acid aqueous medium there formed the respective derivatives with a residue of the nonprotected boric acid (III-VI). It was shown that the activity of the 4-substituted derivatives of the borole-containing eremomycin and vancomycin practically was the same as that of the initial antibiotics, while higher than that of the respective 3-substituted derivatives of the borole-containing derivatives against 8 strains of grampositive bacteria.

About the Authors

E. N. Bychkova
G.F. Gause Institute of New Antibiotics
Russian Federation


A. M. Korolev
G.F. Gause Institute of New Antibiotics
Russian Federation


E. N. Olsufyeva
G.F. Gause Institute of New Antibiotics
Russian Federation


E. P. Mirchink
G.F. Gause Institute of New Antibiotics
Russian Federation


E. B. Isakova
G.F. Gause Institute of New Antibiotics
Russian Federation


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Review

For citations:


Bychkova E.N., Korolev A.M., Olsufyeva E.N., Mirchink E.P., Isakova E.B. Design of Novel Carboxamides of Eremomycin and Vancomycin with 4- or 3-Amino Methyl Phenyl Boric Acid and Their Investigation. Antibiot Khimioter = Antibiotics and Chemotherapy. 2015;60(9-10):7-11. (In Russ.)

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ISSN 0235-2990 (Print)