Patent · US Active

Salt of aldose reductase inhibitor, and preparation method and application thereof

US12195471B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

CSPC ZHONGQI PHARMACEUTICAL TECHNOLOGY (SHIJIAZHUANG) CO., LTD. · CN

Inventors

Zhankun Yang · Shijiazhuang, CN
Hanyu Yang · Xiong County, CN
Pengfei Li · Hangzhou City, CN
Xiaopeng Liu · Beijing, CN
Caihong Zhou · Shanghai, CN
Junling Wang · Nanjing, CN
Chunna LI · Laishui, CN
Xibao LIU · Laishui, CN

Key dates

Filing date	Feb 28, 2020
Grant date	Jan 14, 2025
Priority date	—
Expiry date	Feb 17, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/13
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention sets forth a salt of an aldose reductase inhibitor shown in formula A-N. The salt being able to be prepared as a crystal form, having notably improved solubility relative to the compound of formula A, having lower hygroscopicity allowing for stable existence, and thus being more easily made into a medicine than are the formula A compound or other salts.

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