Short enantioselective total synthesis of (+)-tofacitinib
[Display omitted] •An organocatalytic route for (+)-tofacitinib is described.•l-Proline catalysed hydroxylation is the key step.•Diastereoselective hydrogenation used for key intermediate.•(+)-Tofacitinib obtained in 8 step with 22.4% overall yield and 96.8% ee. An enantioselective total synthesis o...
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Veröffentlicht in: | Tetrahedron letters 2021-03, Vol.67, p.152838, Article 152838 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | [Display omitted]
•An organocatalytic route for (+)-tofacitinib is described.•l-Proline catalysed hydroxylation is the key step.•Diastereoselective hydrogenation used for key intermediate.•(+)-Tofacitinib obtained in 8 step with 22.4% overall yield and 96.8% ee.
An enantioselective total synthesis of Tofacitinib (CP-690,550), a Janus tyrosine kinase (JAK3) specific inhibitor has been achieved from the readily available 4-piperidone. Proline catalysed hydroxylation is the key step for the synthesis of enantiopure 1-benzyl-4-methylpiperidin-3-ol. |
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ISSN: | 0040-4039 1873-3581 |
DOI: | 10.1016/j.tetlet.2021.152838 |