Hexa-cyclic compound
US5061795A · kind A · utility
22Cited by
1References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D491/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel hexa-cyclic compound, a derivative of camptothecin, of the general formura: ##STR1## The compound is prepared from an aminoketone compound and a pyranoindolizine compound through Friedlaender reaction. It has an excellent antitumour activity and a high degree of safety, and can be applied as an antitumour medicine for curing tumors of various kinds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.