METHOD FOR PRODUCING BENZOPYRANONE COMPOUND AND NOVEL INTERMEDIATE USED THEREIN

Title:

METHOD FOR PRODUCING BENZOPYRANONE COMPOUND AND NOVEL INTERMEDIATE USED THEREIN

Document Type and Number:

WIPO Patent Application WO/2021/215900

Kind Code:

A1

Abstract:

The present invention provides a method for producing 2-(2,5-difluorophenyl)-3-carboxy-7-chloro-(4H)-4-benzopyranone represented by chemical formula 1, a novel intermediate used therein, and a method for producing same. Specifically, an objective of the present invention is to provide a novel production method, in which the compound of chemical formula 1 can be efficiently and economically synthesized and can be mass-produced in a high yield.

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Inventors:

MAENG HYUNG GUN (KR)

Application Number:

PCT/KR2021/095035

Publication Date:

October 28, 2021

Filing Date:

March 17, 2021

Export Citation:

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Assignee:

ILAB (KR)

International Classes:

C07C65/24; A61K31/352; A61P1/00; A61P19/02; A61P29/00; C07D311/30

Foreign References:

KR20190044025A	2019-04-29
CN108676063A	2018-10-19
KR20080013162A	2008-02-13
US20070123511A1	2007-05-31
KR20210026308A	2021-03-10
KR101934651B1	2019-01-02

Attorney, Agent or Firm:

CHOI, Eun Sun (KR)

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