Prostacyclin (PGI.sub.2) analogues
US4820836A · kind A · utility
5Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1987 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Mar 13, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Prostacyclin (PGI.sub.2) analogues represented by the formula: ##STR1## wherein R.sub.1 is hydrogen or lower alkyl; R.sub.2 is alkynyl; R.sub.3 and R.sub.4 each is hydrogen; R.sub.5 is straight or branched alkyl which may be substituted with heterocycle, straight or branched alkynyl, or cycloalkyl; the wavy line indicates R- or S-configuration, or their mixture; or a salt thereof being used as antithrombotic and antiulcer drugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.