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Serving 500+ biopharmaceutical companies globally:

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Generated: September 20, 2017

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Title: Carbostyril derivatives
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)
Application Number:07/424,719
Patent Claim Types:
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Compound; Use; Composition;

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Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan63-276953Oct 31, 1988

International Patent Family for Patent: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Hong Kong1002706► Subscribe
Spain2084594► Subscribe
European Patent Office0367141► Subscribe300161Netherlands► Subscribe
European Patent Office0367141► SubscribeSPC/GB04/039United Kingdom► Subscribe
European Patent Office0367141► SubscribeC00367141/01Switzerland► Subscribe
European Patent Office0367141► SubscribeC300161Netherlands► Subscribe
Denmark168485► Subscribe
Denmark539789► Subscribe
Germany122004000043► Subscribe
Germany68925405► Subscribe
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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.

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Serving 500+ biopharmaceutical companies globally:

McKesson
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Healthtrust
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Chinese Patent Office
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Argus Health

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