Benzonaphthyridines as bronchial therapeutics
US6008215A · kind A · utility
28Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compounds of formula (I) in which R1, R2, R3 and R4 have the meanings indicated in the description, are novel active bronchial therapeutics
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.