Patent · US Expired

Benzopyran compounds, process for preparing the same and their use

US7456205B2 · kind B2 · utility

1Cited by

0References

3Claims

0Family size

Assignee

SHANGHAI INSTITUTE OF MATERIA MEDICA, CHINESE ACADEMY OF SCIENCES · CN

Inventors

Yushe Yang · Shanghai, CN
Lei Tang · Zhenjiang, CN
Ruyun Ji · Shanghai, CN
Kaixian Chen · Shanghai, CN

Key dates

Filing date	Feb 26, 2003
Grant date	Nov 25, 2008
Priority date	—
Expiry date	Aug 14, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D413/12
WIPO fieldPharmaceuticals
WIPO sectorChemistry

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; R1 represents a hydrogen atom or a C1-6 alkyl that can be substituted; R2 represents a hydrogen atom, a C1-6 alkyl 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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.