Bispilocarpic acid ester derivatives and process for their preparation
US5436350A · kind A · utility
Inventors
Key dates
| Filing date | May 26, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | May 26, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The object of the invention are bispilocarpates useful in the treatment of glaucoma and having the formula ##STR1## wherein A) Y is hydrogen or the acyl group ##STR2## and W is the group --O--A--O--Z--Y', wherein Y' is hydrogen or the acyl group ##STR3## the groups R and R' having different meanings and may be the same or different and A is an aliphatic, aromatic or heterocyclic bridging group, and --Z--Y' is ##STR4## or B) W is OR, wherein R has the same meaning as above, Y is ##STR5## where R' has the same meaning as above, B means the same as A and Z'--OR' is ##STR6## or C) W and Y together mean ##STR7## where the symbols have the same meanings as above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.