Micrologix Biotech Inc.

Noreen D Francis

Donald B Borders

Amedeo A Fantini

William V Curran

Richard A Leese

Howard Jarolmen

The present invention provides laspartomycin core peptides, laspartomycin core peptide derivatives, antimicrobial laspartomycin derivatives, methods for making laspartomycin core peptides, methods for making laspartomycin core peptide derivatives, methods for making antimicrobial laspartomycin derivatives, pharmaceutical compositions of antimicrobial laspartomycin derivatives, methods of inhibiting microbial growth and methods for treating and/or preventing microbial infections in a subject.

Derivatives of laspartomycin and preparation and use thereof

The present invention provides a rapid and inexpensive method for extractively isolating acidic lipopeptide antibiotics, such as those having a cyclic peptide or cyclic depsipeptide core, in high yield and purity. In particular, there is provided a method of extracting a variety of acidic lipopeptide antibiotics, directly or indirectly, into water immiscible organic solvents by using a divalent cation chelation procedure.

Extractive purification of lipopeptide antibiotics

The present invention provides a laspartomycin core peptide, a laspartomycin core peptide derivative, a antimicrobial laspartomycin derivative, a method for making laspartomycin core peptides, methods for making laspartomycin core peptide derivatives, methods for making antimicrobial laspartomycin derivatives, pharmaceutical compositions of antimicrobial laspartomycin derivatives, methods of inhibiting microbial growth and methods for treating and/or preventing microbial infections in a subject.

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Harriman, NY, United States of America

Noreen D Francis