Patent · US Active

Methods of preparing icotinib and icotinib hydrochloride, and intermediates thereof

US9085588B2 · kind B2 · utility

0Cited by

1References

32Claims

0Family size

Assignee

Betta Pharmaceuticals Co., Ltd · CN

Inventors

Shaojing Hu · Beijing, CN
Wei Long · Beijing, CN
Fei Wang · Beijing, CN
Zongquan Li · Zhejiang, CN

Key dates

Filing date	Dec 28, 2012
Grant date	Jul 21, 2015
Priority date	—
Expiry date	Dec 28, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D405/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to the technical field of medicine, and specifically provides methods for preparing Icotinib, Icotinib hydrochloride, and intermediates thereof. These methods avoid the use of phosphorus oxychloride, thereby greatly reducing the emission of pollutants, which is of major benefits to the economy and environment.

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