Indole derivatives thromboxane A2 antagonists
US5744488A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Apr 28, 1998 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D401/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula (I): ##STR1## and pharmaceutically acceptable salt and biolabile esters thereof, wherein R.sup.1 is H, C.sub.1 -C.sub.4 alkyl, phenyl optionally substituted by up to three substituents independently selected from C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen and CF.sub.3, or is 1-imidazolyl, 3-pyridyl or 4-pyridyl; R.sup.2 is H or C.sub.1 -C.sub.4 alkyl, R.sup.3 is SO.sub.2 R.sup.4 or COR.sup.4 where R.sup.4 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.3 perfluoroalkyl(CH.sub.2).sub.p, C.sub.3 -C.sub.6 cycloalkyl(CH.sub.2).sub.p, aryl(CH.sub.2).sub.p, or heteroaryl(CH.sub.2).sub.p, p being 0, 1 or 2, or R.sup.4 may be NR.sup.5 R.sup.6 where R.sup.5 is H or C.sub.1 -C.sub.4 alkyl and R.sup.6 is C.sub.1 -C.sub.6, alkyl, C.sub.3 -C.sub.6 cycloalkyl or aryl, or R.sup.5 and R.sup.6 together with the nitrogen atom to which they are attached form a 5- to 7-membered heterocyclic ring which may optionally incorporate a carbon-carbon double bond or a further heteroatom linkage selected from O, S, NH, N(C.sub.1 -C.sub.4 alkyl) and N(C.sub.1 -C.sub.5 alkanoyl); X is CH.sub.2 or a direct link, with the proviso that when R.sup.1 is 1-imidazolyl then X is CH.sub.2 ; m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.