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. 10, 1985
Filed:
Jun. 07, 1983
Kouichiro Ueda, Saitama, JP;
Satoru Tanaka, Tokyo, JP;
Toshinobu Kunii, Gifu, JP;
Kengo Kagei, Gifu, JP;
Tadashi Sato, Aichi, JP;
Ono Hideki, Aichi, JP;
Issei Ohtsuka, Gifu, JP;
Mayumi Kawase, Gifu, JP;
Toshiharu Ohgoh, Aichi, JP;
Tsuneo Wakabayashi, Gifu, JP;
Eisai Co., Ltd., Tokyo, JP;
Abstract
Novel hydantoin derivatives and salts thereof, the process for the preparation thereof, and medicines containing the same, wherein the hydantoin derivatives are represented by the general formula: ##STR1## wherein X.sub.1 and X.sub.2, which may be the same or different, independently represent a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; Y represents an oxygen atom or sulfur atom, R.sub.1 and R.sub.2, which may be the same or different, independently represent a hydrogen atom, a lower alkyl group or phenyl group, or both may form a ring with carbon atoms, excluding the case wherein both R.sub.1 and R.sub.2 are hydrogen atom, and n represents 0 or 1. The novel hydantoin derivatives and salts thereof have excellent effects for the treatment of the complications of diabetes mellitus.