Process for preparing intermediates for the synthesis of optically active beta-amino alcohols by enzymatic reduction and novel synthesis intermediates
US11053227B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Subject-matter of the present invention is a process for preparing intermediates for the synthesis of optically active beta-amino alcohols by enzymatic reduction of the corresponding beta-amino ketones. Subject-matter of the invention are also said novel synthesis intermediates and the use thereof in the preparation of active pharmaceutical ingredients, among which vilanterol and the salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.