Patent · US Active

Crystal form of pyridopyrimidine derivative and preparation method thereof

US12269823B2 · kind B2 · utility

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0References

17Claims

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Assignees

Inventors

Qi Wu · Phoenix, US
Zhenxing DU · 安丰镇, CN
Jie Wang · Lake Bluff, US
Lin Wang · Qingdao, CN
Weidong Lu · Beijing, CN
Qiyun SHAO · Shanghai, CN
Jun Feng · San Diego, US
Feng He · Nanhu, CN

Key dates

Filing date	Dec 31, 2020
Grant date	Apr 8, 2025
Priority date	—
Expiry date	Apr 30, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/30
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present disclosure relates to a crystal form of a pyridopyrimidine derivative and a preparation method thereof, and specifically relates to the crystal form of the compound of formula (I) and a preparation method thereof. The new crystal form has good physical and chemical properties, thereby facilitating clinical treatments.

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