Camptothecin derivatives
US8575188B2 · kind B2 · utility
5Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2010 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D491/22
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Various 14-nitro, 14-amino, and 14-substituted amino camptothecin derivatives are useful in the treatment of cancer and other hyperproliferative diseases. 14-Nitro camptothecin derivatives are conveniently prepared by reacting a camptothecin derivative with fuming nitric acid, optionally employing acetic anhydride as a solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.