Method for synthesis of halopyridyl-azacyclopentane derivative and intermediate thereof
US6384228B2 · kind B2 · utility
0Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for synthesis of an optically active halopyridyl-azacyclo-pentane derivative and the intermediate thereof which comprises preparing an optically active allene-1,3-dicarboxylic acid ester derivative from an optically active acetonedicarboxylic acid ester derivative and then proceeding through a 7-azabicyclo[2.2.1]heptane derivative to obtain the objective product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.