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:
Mar. 02, 1999
Filed:
Jan. 27, 1997
Nigel Birdsall, London, GB;
Sebastian Lazareno, Ware, GB;
Syunji Naruto, Yokohama, JP;
Masahiko Sugimoto, Misato, JP;
Kazuo Koyama, Kawaguchi, JP;
Shinji Marumoto, Kita-ward, JP;
Sankyo Company, Limited, Tokyo, JP;
Abstract
A compound of formula (I): ##STR1## wherein Y.sup.1, Y.sup.2, Y.sup.3 and Y.sup.4 are each hydrogen, halogen, nitro, cyano, hydroxyl, thiol, amino, alkyl, haloalkyl, alkylthio, a protected or unprotected carboxyl, a protected or unprotected sulfonamide, or tetrazol; one of R.sup.1 and R.sup.2 is hydrogen, alkyl, aryl, aralkyl, oxazolyl, or a protected or unprotected carboxyl and the other of R.sup.1 and R.sup.2 is hydrogen, alkyl, aryl or aralkyl; and R.sup.3 is hydrogen or an amino protecting group, and pharmaceutically acceptable salts or esters thereof. The compounds are effective for treating dementia, Alzheimer's disease and delirium and are effective as sedatives.