Xanthine derivatives
US5756735A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to novel xanthine derivatives of the formula (I) which are selectively antagonistic to an adenosine A.sub.2 receptor, and pharmaceutically acceptable salts thereof. Formula (I): ##STR1## In the formula, R.sup.1 and R.sup.2 are the same or different and each represents a hydrogen atom, a propyl group, a butyl group or an allyl group; R.sup.3 represents a hydrogen atom or a lower alkyl group; Y.sup.1 and Y.sup.2 are the same or different and each represents a hydrogen atom or a methyl group; and Z represents a substituted or unsubstituted phenyl group, a pyridyl group, an imidazolyl group, a furyl group or a thienyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.