UCS1025 derivatives
US6869971B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Oct 19, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D491/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
UCS 1025 derivatives having antitumor activity or antibacterial activity which are represented by formula (I): wherein R1 represents hydrogen, lower alkyl, etc.; R2 represents hydrogen, or is combined with R3 to represent a bond, etc., or is combined with R4 to represent —O(C═O)—, etc.; R3 represents hydrogen, etc., or is combined with R2 to represent a bond, etc.; R4 represents hydrogen, etc., or is combined with R2 to represent —(C═O)O—, etc.; R5 represents hydrogen or is combined with R6 to represent a bond; R6 represents hydrogen, etc., or is combined with R5 to represent a bond; R7 represents hydrogen or is combined with R8 to represent ═O; R8 represents hydroxy or is combined with R7 to represent ═O; ---- represents a single bond or a double bond, and a represents a single bond (two carbon atoms to which a is bound are combined to form a single bond) or an oxygen atom, or pharmaceutically acceptable salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.