Patent · US Active

4-((3, 5, 6-trimethylpyrazine-2-yl) methoxyl) benzoic acid and its derivatives

US8350033B2 · kind B2 · utility

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11Claims

0Family size

Inventors

Jiaming Li · Yongkang, CN
Guangwei He · Hefei, CN
Yonghai Zhao · Hefei, CN
Fengshi Ma · Hefei, CN
Yong He · Beijing, CN
Qiang Wu · Hefei, CN
Feng Li · Winchester, US

Key dates

Filing date	Oct 27, 2008
Grant date	Jan 8, 2013
Priority date	—
Expiry date	Dec 8, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P9/10
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Ligustrazine aromatic acid ether derivative of general formula I, its preparation method, pharmaceutical composition and application, wherein Ar is selected from aryl substituted aryl and substituted styryl, R is selected from hydrogen and alkyl with no more than 6 carbon atoms.

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