Process for preparing pure anastrozole
US8058302B2 · kind B2 · utility
7Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2006 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Dec 6, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses two new related substances (6) and (7) of Anastrozole synthesis from Q.A. Salt (5) as in Scheme—1 and purification procedures to get Anastrozole (1) free from (6) and (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.