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Title:
METHOD FOR PREPARING SALICYLAMIDE ACETATE
Document Type and Number:
WIPO Patent Application WO/2019/105324
Kind Code:
A1
Abstract:
Disclosed is a method for preparing salicylamide acetate. The method comprises the steps of: (1) carrying out amino protection on salicylaldehyde having a structure represented by formula 1 to obtain a compound having a structure represented by formula 2; and (2) carrying out acid hydrolysis to the compound having a structure represented by formula 2 and then reacting the acid-hydrolyzed compound with acetic acid to obtain salicylamide acetate.

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Inventors:
LONG LING (CN)
Application Number:
PCT/CN2018/117458
Publication Date:
June 06, 2019
Filing Date:
November 26, 2018
Export Citation:
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Assignee:
TSI PHARMACEUTICAL JIANGYIN CO LTD (CN)
International Classes:
C07C213/00; C07C209/22; C07C209/54; C07C209/58; C07C211/27; C07C215/50
Domestic Patent References:
WO2012104305A12012-08-09
Foreign References:
JPS55162747A1980-12-18
Other References:
MESTICHELLI, P. ET AL.: "Concise Copper-Catalyzed Synthesis of Tricyclic Biaryl Ether- Linked Aza-Heterocyclic Ring Systems", ORGANIC LETTERS, vol. 15, no. 21, 17 October 2013 (2013-10-17) - 31 December 2013 (2013-12-31), pages 5448 - 5451, XP055615949, ISSN: 1523-7052
PLATTNER, J.J. ET AL.: "Aminomethyl)aryl]oxy]acetic acid esters. A New Class of High- Ceiling Diuretics. 2. Modifications of the Oxyacetic Side Chain", JOURNAL OF MEDICINAL CHEMISTRY, vol. 27, no. 12, 31 December 1984 (1984-12-31), pages 1587 - 1596, XP002357524, ISSN: 0022-2623, doi:10.1021/jm00378a011
See also references of EP 3719002A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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