Enzymatic resolution of substituted 2-methyl-propionic acid
US5476965A · kind A · utility
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14Claims
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Key dates
| Filing date | Feb 18, 1994 |
| Grant date | Dec 19, 1995 |
| Priority date | — |
| Expiry date | Feb 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P41/005
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Provided are enzymatic methods for the selective hydrolytic resolution of certain enantiomers of a pharmaceutical compound, the pharmaceutical compound comprising a (.+-.) mixture of a .alpha.-substituted 2-methyl proprionic acid derivative. Specifically provided is the selective enzymatic resolution of either the R(+) or S(-) enantiomer of (.+-.)-ethyl ciprofibrate. Also provided are substantially pure enantiomers of R(+) and S(-) ciprofibrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.