Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Containing at least one abnormal peptide link – e.g. – gamma...
Patent
1984-12-11
1986-06-10
Brown, Johnnie R.
Chemistry: natural resins or derivatives; peptides or proteins;
Peptides of 3 to 100 amino acid residues
Containing at least one abnormal peptide link, e.g., gamma...
536 71, 536 75, 536 168, C07C10352, C07H 1526
Patent
active
045941874
ABSTRACT:
The present invention is directed to a chemical process for preparing the antibiotic substance denominated antibiotic L 17054 and its pharmaceutically acceptable salts by selectively hydrolyzing teicoplanin or a factor or component thereof with a concentrated strong organic acid.
REFERENCES:
patent: 4196280 (1980-04-01), Umezawa et al.
patent: 4401660 (1983-08-01), Kirst
patent: 4439426 (1984-03-01), Toscano et al.
patent: 4486584 (1984-12-01), Baltz et al.
Majer et al., "Jour. of the American Chemical Soc.", vol. 99, No. 5, 3/1977.
Cavalleri Bruno
Malabarba Adriano
Strazzolini Paolo
Brown Johnnie R.
Gruppo Lepetit S.p.A.
Nesbitt Stephen L.
Stein William J.
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