METHOD FOR PREPARING XANTHINE OXIDASE INHIBITOR

Title:

METHOD FOR PREPARING XANTHINE OXIDASE INHIBITOR

Document Type and Number:

WIPO Patent Application WO/2023/277660

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing a xanthine oxidase inhibitor and, more specifically, to a method for preparing a compound of chemical formula 2 by using ester hydrolysis and a recrystallization method.

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Inventors:

LEE SEOK JU (KR)
JEONG HUI RAK (KR)
HAM JIN OK (KR)
SHIN DOO SUP (KR)

Application Number:

PCT/KR2022/009549

Publication Date:

January 05, 2023

Filing Date:

July 01, 2022

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C07D403/04; A61K31/4155

Domestic Patent References:

WO2008126898A1

2008-10-23

Foreign References:

KR101424013B1	2014-08-18
KR20110037883A	2011-04-13
KR101829706B1	2018-02-19
KR20200029751A	2020-03-19
KR20110037883A	2011-04-13

Other References:

S. P. BRUCE, ANN. PHARM., vol. 40, 2006, pages 2187 - 2194
N. L. EDWARDS, ARTHRITIS & RHEUMATISM, vol. 58, 2008, pages 2587 - 2590

Attorney, Agent or Firm:

HANSUNG INTELLECTUAL PROPERTY (KR)

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