Synthesis of the Potent Antiglaucoma Agent, Travoprost
Autor: | Raymond Mccague, Mark Jackson, Ian C. Lennon, Graham Ruecroft, Nicholas Parkin, Lee T. Boulton, Dean Brick, Martin E. Fox, Darren Rhodes |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Organic Process Research & Development. 6:138-145 |
ISSN: | 1520-586X 1083-6160 |
DOI: | 10.1021/op010097p |
Popis: | A commercial synthesis of the antiglaucoma agent, travoprost 2, is described. A total of 22 synthetic steps are required to provide the single enantiomer prostanoid, with the longest linear sequence being 16 steps from 3-hydroxybenzotrifluoride. The route is based upon a cuprate-mediated coupling of the single enantiomer vinyl iodide 13 and the tricyclic ketone 5, of high stereochemical purity, to yield the single isomer bicyclic ketone 15. A Baeyer−Villiger oxidation provides the lactone 16 as a crystalline solid, thus limiting the need for chromatographic purification. DIBAL-H reduction, Wittig reaction, esterification, and silyl group deprotection complete the synthesis of travoprost. |
Databáze: | OpenAIRE |
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