Abstract

A new macrocyclic antibiotic of the vancomycin family, referred to by its industrial designation as A-40,926, was bonded to 5 μm silica particles and utilized as a chiral stationary phase (CSP). Since A-40,926 is structurally related to teicoplanin, the A-40,926 CSP was compared to a commercially available teicoplanin CSP. A set of 28 chiral compounds, including amino-acids and related compounds, compounds with a ring containing the stereogenic centre, compounds bearing aromatic structures near their stereogenic centres and alcohols, was tested for enantioseparation on the two CSPs. The results are compared and discussed in terms of enantioselective Gibbs energy difference. The A-40,926 CSP was able to resolve one compound that was not resolved by the teicoplanin CSP. However, it could not separate four compounds that the teicoplanin CSP did separate. It is shown that the A-40,926 CSP is complementary to the teicoplanin CSP, thereby enlarging the number of enantiomers that can be separated by the macrocyclic glycopeptide based CSPs. Copyright (C) 2000 Elsevier Science B.V.

Department(s)

Chemistry

Comments

National Institutes of Health, Grant R01 GM53825-04

Keywords and Phrases

A-40,926; Amino acids; Antibiotics; Chiral stationary phases, LC; Enantiomer separation; Teicoplanin

International Standard Serial Number (ISSN)

0021-9673

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

03 Nov 2000

PubMed ID

11128195

Included in

Chemistry Commons

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