Process for the preparation of intermediates useful for the synthesis for benzothiazepines
US6346632B1 · kind B1 · utility
0Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 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 (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.