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Generated: October 23, 2017

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Details for Patent: 4,895,841

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Summary for Patent: 4,895,841

Title: Cyclic amine compounds with activity against acetylcholinesterase
Abstract:A cyclic amine compound is defined by the formula: ##STR1## in which J is indanyl, indanonyl, indenyl, indenonyl, indanedionyl, tetralonyl, benzosuberonyl, indanolyl or a divalent group thereof, K is phenyl, an arylalkyl or cynnamyl, B is --(CHR22)r--, R22 being H or methyl, --CO--(CHR22)r--, .dbd.(CH--CH.dbd.CH)b--, .dbd.CH--(CH2)c-- or .dbd.(CH--CH)d.dbd. and the ring including T and Q is piperidine. The compound is useful to treat senile dementia.
Inventor(s): Sugimoto; Hachiro (Ushiku, JP), Tsuchiya; Yutaka (Fort Lee, NJ), Higurashi; Kunizou (Tokyo, JP), Karibe; Norio (Tsukuba, JP), Iimura; Youichi (Tsukuba, JP), Sasaki; Atsushi (Tsukuba, JP), Yamanishi; Yoshiharu (Ryugasaki, JP), Ogura; Hiroo (Tsuchiura, JP), Araki; Shin (Tsukuba, JP), Kosasa; Takashi (Tsukuba, JP), Kubota; Atsuhiko (Tsukuba, JP), Kosasa; Michiko (Tsukuba, JP), Yamatsu; Kiyomi (Kamakura, JP)
Assignee: Eisai Co., Ltd. (Tokyo, JP)
Application Number:07/209,339
Patent Claim Types:
see list of patent claims
Compound; Use; Composition;

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Foreign Priority and PCT Information for Patent: 4,895,841

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan62-155058Jun 22, 1987

International Patent Family for Patent: 4,895,841

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Spain2083359► Subscribe
European Patent Office0742207► Subscribe
European Patent Office0673927► Subscribe
European Patent Office0579263► Subscribe
European Patent Office0296560► SubscribeSPC/GB97/023United Kingdom► Subscribe
European Patent Office0296560► Subscribe98C0015Belgium► Subscribe
European Patent Office0296560► Subscribe2/1998Austria► Subscribe
Canada1340192► Subscribe
China1030752► Subscribe
China1024547► 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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