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:
Jul. 30, 1991
Filed:
Mar. 31, 1989
Masayasu Kurono, Aichi, JP;
Toshinao Usui, Aichi, JP;
Kenji Miura, Aichi, JP;
Yasuaki Kondo, Aichi, JP;
Kiichi Sawai, Aichi, JP;
Sanwa Kagaku Kenyusho Co., Ltd., Aichi, JP;
Abstract
Hydantoin derivatives of the formula ##STR1## wherein Ra and Rb are same or different, each being hydrogen atom, alkanoyl, substituted or none-substituted aroyl, heteroaroyl, alkoxycarbonyl, substituted or none-substituted aralkoxycarbonyl, aryloxycarbonyl, N-alkylcarbamoyl, N,N-dialkylcarbamoyl, substituted or none-substituted N-aralkylcarbamoyl, alkoxyalkyl, 1-(acyloxy)-alkyl, alkylmercapto, substituted or none-substituted arylmercapto, alkylsulfinyl, substituted or none-substituted arylsulfinyl, alkylsulfonyl or substituted or none-substituted arylsulfonyl, but both of Ra and Rb do not concurrently mean hydrogen atom, a process for the preparation of the derivatives, and use thereof as an agent for preventing and curing chronic complications due to diabetes.