New method of preparation of carboxy-protected amino acid conjugates of glycyrrhizinic acid

A method for preparation of carboxy-protected amino acid conjugates of glycyrrhizinic acid with the use of N -hydroxybenzotriazole, 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, and methyl esters of L-amino acids (phenylalanine, tyrosine, leucine, isoleucine, and methionine) in 85–90% yield was dev...

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Bibliographic Details
Published in:Russian journal of general chemistry 2016, Vol.86 (4), p.826-829
Main Authors: Baltina, L. A., Fairushina, A. I.
Format: Article
Language:English
Subjects:
Amino acids
Antibiotics
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Conjugates
Esters
Leucine
Methionine
NMR
Nuclear magnetic resonance
Phenylalanine
Tyrosine
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Summary:A method for preparation of carboxy-protected amino acid conjugates of glycyrrhizinic acid with the use of N -hydroxybenzotriazole, 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide, and methyl esters of L-amino acids (phenylalanine, tyrosine, leucine, isoleucine, and methionine) in 85–90% yield was developed. The structure of the prepared compounds was confirmed by IR and 13 C NMR spectra.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363216040113