Patent · US Active

Process for the preparation of quinolone based compounds

US10899713B2 · kind B2 · utility

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55Claims

0Family size

Assignee

Cadila Healthcare Ltd. · IN

Inventors

Ranjit C. Desai · Colonie, US
Rajiv Sharma · Mumbai, IN
Vrajesh Pandya · Sayla, IN
Kalpesh Shah · Ahmedabad, IN
Sunil S. Patel · Sayla, IN
Rakesh Chauhan · Sayla, IN
Ranjeet Nair · Mumbai, IN
Vivek Joshi · Chelmsford, US
Manoj Patel · Berlin, US
Mrigendra Shukla · Sayla, IN

Key dates

Filing date	May 24, 2019
Grant date	Jan 26, 2021
Priority date	—
Expiry date	May 24, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/02
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to an improved process for the preparation of quinolone based compounds of general formula (I) using intermediate compound of general formula (XII). Invention also provides an improved process for the preparation of compound of formula (I-a) using intermediate compound of formula (XII-a) and some novel impurities generated during process. Compounds prepared using this process can be used to treat anemia.

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