US 6946554
Process for the preparation of 9-deazaguanine derivatives
expired A61KA61K31/519A61K31/5377
Quick answer
US patent 6946554 (Process for the preparation of 9-deazaguanine derivatives) held by BioCryst Pharmaceuticals, Inc. expires Mon Sep 15 2025 00:00:00 GMT+0000 (Coordinated Universal Time). Status: expired.
Key facts
- Applicant
- BioCryst Pharmaceuticals, Inc.
- Grant date
- Tue Sep 20 2005 00:00:00 GMT+0000 (Coordinated Universal Time)
- Expiration
- Mon Sep 15 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
- Claims
- 13
- CPC classes
- A61K, A61K31/519, A61K31/5377, A61K31/541