Process for the preparation of intermediates useful for the synthesis of benzothiazepines
US5571704A · kind A · utility
2Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1995 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Mar 14, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P41/005
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of the compounds of formula ##STR1## (wherein R has the meanings reported in the specification) by enzymatic transesterification of enantiomeric mixtures is described. These compounds are intermediates useful in the synthesis of Diltiazem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.