Manage your formulary budget
Find generic entry opportunities
Anticipate generic drug launch
Proactively manage your pharmacy inventory
Drug patents …
… from Kazakhstan to Kalamazoo
Deep knowledge on
small-molecule drugs and
the 110,000 global patents
|Abstract:||A novel carbostyril derivative and salt thereof represented by the formula (1) ##STR1## (wherein R is a group of the formula ##STR2## ((wherein R.sup.1 is a C.sub.1- C.sub.3 alkoxy group)), a group of the formula ##STR3## ((wherein R.sup.2 and R .sup.3 are each, at the same time, a chlorine atom, a bromine atom; and R.sup.4 is a hydrogen atom or a chlorine atom)), 2-methyl-3-nitrophenyl group, 3,5-dichlorophenyl group, or a group of the formula ##STR4## ((wherein R.sup.5 is a chlorine atom or a bromine atom; and R.sup.6 is a methyl group)); the carbon-carbon bond between 3- and 4-position in the carbostyril skeleton is a single or double bond).|
|Inventor(s):||Oshiro; Yasuo (Tokushima, JP), Sato; Seiji (Itano, JP), Kurahashi; Nobuyuki (Tokushima, JP)|
|Assignee:||Otsuka Pharmaceutical Co., Ltd. (Tokyo, JP)|
Patent Claim Types:|
see list of patent claims
|Compound; Use; Composition;|
|Foriegn Application Priority Data|
|Foreign Country||Foreign Patent Number||Foreign Patent Date|
|Japan||63-276953||Oct 31, 1988|
|Country||Document Number||Estimated Expiration||Supplementary Protection Certificate||SPC Country||SPC Expiration|
| This preview shows a limited data set|
Subscribe for full access, or try a Trial
The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.
Export unavailable in trial.
Subscribe for complete access.