New Drug Approvals

File:Tigecycline structure.svg

Tigecycline

N-[(5aR,6aS,7S,9Z,10aS)-9-[amino(hydroxy)methylidene]-4,7-bis(dimethylamino)-1,10a,12-trihydroxy-8,10,11-trioxo-5,5a,6,6a,7,8,9,10,10a,11-decahydrotetracen-2-yl]-2-(tert-butylamino)acetamide

Tigecycline is a glycylcycline antibiotic[1][2] developed by Francis Tally[3] and marketed by Wyeth under the brand name Tygacil. It was given a U.S. Food and Drug Administration (FDA) fast-track approval and was approved on June 17, 2005. It was developed in response to the growing prevalence of antibiotic resistance in bacteria such as Staphylococcus aureus and Acinetobacter baumannii. The New Delhi metallo-β-Lactamase multidrug-resistant Enterobacteriaceae has also shown susceptibility to tigecycline.[4]

This antibiotic is the first clinically available drug in a new class of antibiotics called the glycylcyclines. It is structurally similar to the tetracyclines in that it contains a central four-ring carbocyclic skeleton and is actually a derivative of minocycline. Tigecycline has a substitution at the D-9 position which is believed to confer broad spectrum activity.

Tigecycline is…

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