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:
Nov. 25, 2008
Filed:
Feb. 26, 2003
Yushe Yang, Shanghai, CN;
Lei Tang, Shanghai, CN;
Ruyun Ji, Shanghai, CN;
Kaixian Chen, Shanghai, CN;
Yushe Yang, Shanghai, CN;
Lei Tang, Shanghai, CN;
Ruyun Ji, Shanghai, CN;
Kaixian Chen, Shanghai, CN;
Abstract
The invention relates to the benzopyran compounds of formula (I), or the salts thereof, in which, the bond between 3 and 4 positions is a single or double bond; Rrepresents a hydrogen atom or a Calkyl that can be substituted; Rrepresents a hydrogen atom, a Calkyl that can be substituted or an aromatic carbocyclic or aromatic heterocyclic group that can be substituted. The invention also relates to a process for preparing such compounds or their salts as well as the use of such compounds or their salts in the preparation of the medicine against type II diabetes mellitus.