Process for the preparation of (2R,3R)-cis)-.beta.-phenylglycidic acid
US5256803A · kind A · utility
4Cited by
1References
6Claims
0Family size
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Key dates
| Filing date | Aug 21, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Aug 21, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D303/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing .beta.-phenylglycidic-(2R, 3R) acid optionally in the form of salt or ester by precipitation of the salt of the .beta.-phenylglycidic-(2R,3R) acid with (+)-.alpha.-methylbenzylamine-(R) in a solution of a mixture of salts of cis and trans .beta.-phenylglycidic acids with (+)-.alpha.-methylbenzylamine(R)- and the use of the resulting product for preparing taxol and its analogs.
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