Patent · US Active

Pyrazine-2(1H)-ketone compound preparation method

US11535609B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

ZHANGZHOU PIEN TZE HUANG PHARMACEUTICAL CO., LTD. · CN

Inventors

Jinming Huang · Lo Wu, CN
Juan Yu · Fujian, CN
Jinxia Lin · Zhangzhou, CN
Limei Yang · Zhangzhou, CN
Jinxiang Zeng · Zhangzhou, CN
Zhifei Fu · Shanghai, CN
Miaorong Luo · Shanghai, CN
Yang Zhang · San Diego, US
Jian Li · Shanghai, CN
Shuhui CHEN · Shanghai, CN

Key dates

Filing date	Aug 4, 2020
Grant date	Dec 27, 2022
Priority date	—
Expiry date	Aug 4, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F5/025
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Provided are preparation methods for the chemical compound represented by formula (I) and an intermediate thereof.

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