The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2012
Filed:
Dec. 07, 2007
Osamu Uchikawa, Osaka, JP;
Tatsuki Koike, Osaka, JP;
Takafumi Takai, Osaka, JP;
Yasutaka Hoashi, Osaka, JP;
Osamu Uchikawa, Osaka, JP;
Tatsuki Koike, Osaka, JP;
Takafumi Takai, Osaka, JP;
Yasutaka Hoashi, Osaka, JP;
Takeda Pharmaceutical Company Limited, Osaka, JP;
Abstract
The present invention provides a compound represented by the formula wherein Ris a hydrocarbon group optionally having substituent(s), amino optionally having substituent(s), hydroxy optionally having a substituent or a heterocyclic group optionally having substituent(s), Ris a hydrogen atom or a hydrocarbon group optionally having substituent(s), Ris a hydrogen atom, a halogen atom, a hydrocarbon group optionally having substituent(s), amino optionally having substituent(s), hydroxy optionally having a substituent or mercapto optionally having a substituent, Xa to Xe are each a carbon atom or a nitrogen atom, m is 0 to 2, and ring A to ring C are each a ring optionally having substituent(s), or a salt thereof, which is useful as an agent for the prophylaxis or treatment of a disease relating to an action of melatonin, and the like.