61257-02-1Relevant articles and documents
20. 23 - b piperidinyl - 5 - O - carbon mildew amine sugar base polyhydro - method for preparing lactone
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Paragraph 0046; 0051-0052; 0058; 0064, (2018/11/03)
The invention relates to a preparation method of macrolide, which is in particular to a preparation method of 20,23-dipiperidinyl-5-O-carbon mould amine glycosyl-tylosin lactone. The preparation method comprises the following steps: 1)dissolving 20,23-dipiperidinyl-5-O-carbon mould amine glycosyl-tylosin lactone in dichloromethane, adding a selective oxidant or a combination oxidizing agent system, generating an oxidation reaction, generating 20,23-dipiperidinyl-5-O-carbon mould amine glycosyl-tylosin lactone; 2)adding a solvent in 20,23-dipiperidinyl-5-O-carbon mould amine glycosyl-tylosin lactone, then adding piperidine and formic acid, generating a reductive amination to obtain 20,23-dipiperidinyl-5-O-carbon mould amine glycosyl-tylosin lactone. The preparation method has the advantages of short route and simple operation, and is suitable for industrial production.
TYLOSIN DERIVATIVES AND METHOD FOR PREPARATION THEREOF
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Page/Page column 66, (2014/12/12)
The present invention relates to new macrolide derivatives, in particular new tylosin derivatives of the formula (Ila), a pharmaceutical or veterinary composition comprising the derivatives; a method for preparation thereof; a method for treating and/or preventing bacterial infections in an animal, wherein the method comprises administering the derivatives or the composition; and a use of the derivatives for the manufacture of medicaments for treating and/or preventing bacterial infections in an animal.
Peptide derivatives of tylosin-related macrolides
Korshunova,Sumbatyan,Fedorova,Kuznetsova,Shishkina,Bogdanov
, p. 218 - 226 (2008/03/15)
Approaches to the synthesis of model compounds based on the tylosin-related macrolides desmycosin and O-mycaminosyltylonolide were developed to study the conformation and topography of the nascent peptide chain in the ribosome tunnel using specially designed peptide derivatives of macrolide antibiotics. A method for selective bromoacetylation of desmycosin at the hydroxyl group of mycinose was developed, which involves preliminary acetylation of mycaminose. The reaction of the 4″-bromoacetyl derivative of the antibiotic with cesium salts of the dipeptide Boc-Ala-Ala-OH and the hexapeptide MeOTr-Gly-Pro-Gly-Pro- Gly-Pro-OH led to the corresponding peptide derivatives of desmycosin. The protected peptides Boc-Ala-Ala-OH, Boc-Ala-Ala-Phe-OH, and Boc-Gly-Pro-Gly-Pro- Gly-Pro-OH were condensed with the C23-hydroxyl group of O- mycaminosyltylonolide.