9,10 disubstituted camptothecin derivatives with antitumor activity
US5998426A · kind A · utility
3Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Sep 29, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to 9-amino-10-(1-naphthylsulfonyloxy)-20(S)-camptothecin, 9-amino-10-phenylsulfonyloxy-20(S)-camptothecin, 7-ethyl-9-amino-10-(p-toluensulfonyloxy)-20(S)-camptothecin, their pharmaceutically acceptable salts, a process for their preparation, pharmaceutically compositions comprising them and their use as antitumor agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.