3-carbamoyl-2-pyridone derivatives
US8178681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2005 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Jan 26, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides compounds having an agonistic activity to the cannabinoid receptor, which is represented by the formula (I):wherein R1 is optionally substituted C1-C8 alkyl and the like; R2 is C1-C6 alkyl; R3 is C1-C6 alkyl and the like; or R2 and R3 taken together with may form an optionally substituted 5 to 10 membered non-aromatic carbon ring; R4 is hydrogen and the like; G is a group selected from the groups shown by the formula an the like:wherein R5 is hydrogen and the like; X1 is a single bond and the like; X2 is optionally substituted C1-C8 alkylene that may be replaced by one or two groups of —O—, or —N(R6)—, wherein R6 is hydrogen and the like, and the like; X3 is a single bond and the like;a pharmaceutically acceptable salt or a solvate thereof, and pharmaceutical compositions, atopic dermatitis treating agents, and anti-pruritus agents, especially anti-pruritus agents for oral used and for external application, which each contains the said compound as an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.