US 7348429
Process for purifying N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide(zaleplon) and crystalline forms of zaleplon accessible with the process
granted A61PA61P25/20
Quick answer
US patent 7348429 (Process for purifying N-[3-(3-cyanopyrazolo[1,5-a]pyrimidin-7-yl)phenyl]-N-ethylacetamide(zaleplon) and crystalline forms of zaleplon accessible with the process) held by TEVA Gyógyszergyár Zártkörüen Müködö Részvénytárasaság expires Mon Mar 20 2028 00:00:00 GMT+0000 (Coordinated Universal Time). Status: granted.
Key facts
- Applicant
- TEVA Gyógyszergyár Zártkörüen Müködö Részvénytárasaság
- Grant date
- Tue Mar 25 2008 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Mar 20 2028 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 2
- CPC classes
- A61P, A61P25/20