Chiral cyclopentene derivatives and their preparation
US5840923A · kind A · utility
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7Claims
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Key dates
| Filing date | Oct 21, 1994 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Oct 21, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P41/004
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An optically-purified enantiomer of the lactone 4-hydroxy-2-oxabicyclo-3.3.0!oct-7-en-3-one or an acylate thereof can be obtained by biotransformation. It is a useful synthon in the preparation of an enantiomer of 3-hydroxymethyl-2-hydroxycyclopentene that can be used to prepare carbocyclic nucleosides as a desired enantiomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.