METHOD FOR PREPARING ALKYL-D-ALANINATE, ALKYL-D-ALANINATE, ALKYL-D-ALANINATE DERIVATIVE, AND PHARMACEUTICAL OR AGRICULTURAL PRODUCT INCLUDING SAME

Title:

METHOD FOR PREPARING ALKYL-D-ALANINATE, ALKYL-D-ALANINATE, ALKYL-D-ALANINATE DERIVATIVE, AND PHARMACEUTICAL OR AGRICULTURAL PRODUCT INCLUDING SAME

Document Type and Number:

WIPO Patent Application WO/2023/277590

Kind Code:

A1

Abstract:

The present specification relates to: a method for preparing alkyl-D-alaninate, the method comprising a step for distilling a composition, which includes a compound of chemical formula 3 synthesized by reacting chemical formula 1 and chemical formula 2, at a pressure of 1 torr to 60 torr and a temperature of 60 °C to 200 °C; an alkyl-D-alaninate; an alkyl-D-alaninate derivative; and a pharmaceutical or agricultural product including same.

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Inventors:

KANG MYOUNGKU (KR)
KIM JIWON (KR)
AHN BYUNGHOON (KR)
LEE KYUNG WON (KR)
LEE WONJAE (KR)
JEONG DAE YOUN (KR)
CHO JAIHA (KR)

Application Number:

PCT/KR2022/009361

Publication Date:

January 05, 2023

Filing Date:

June 29, 2022

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)
FARMHANNONG CO LTD (KR)

International Classes:

C07C235/74; A01N37/46; A61K31/216; C07C231/14; C07C231/22

Domestic Patent References:

WO2000076960A1

2000-12-21

Foreign References:

CN111747859A	2020-10-09
CN109180514A	2019-01-11
CN101805320A	2010-08-18
EP0048994A1	1982-04-07

Other References:

DUREJA P, TANWAR R S, CHOUDHARY PARTHA P: "Identification of impurities in technical metalaxyl", CHEMOSPHERE, vol. 41, no. 9, 30 November 2000 (2000-11-30), pages 1407 - 1410, XP093018535, DOI: 10.1016/s0045-6535(99)00543-3

Attorney, Agent or Firm:

CHOI, Hee-Kyeong et al. (KR)

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