Method for preparing oxazolidinone intermediate
US10590154B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Nov 2, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/824
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method for preparing an oxazolidinone intermediate. Specifically, a synthesis procedure for the intermediate comprises: directly performing a “one-pot” reaction on a compound I, compound J or compound L without performing isolation, wherein a salt of a compound K is selected from a hydrochloride, sulfate, malate, tartrate, p-toluenesulfonate, or lactate, and wherein the symbol * in a compound indicates an atom of an R-type chirality or an S-type chirality or a racemate thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.