138642-97-4Relevant articles and documents
IRAK DEGRADERS AND USES THEREOF
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Paragraph 00588, (2021/08/13)
The present invention provides compounds, compositions thereof, and methods of using the same.
A 6-chloro imidazo [1, 2-a] pyridine-3-carboxylic acid synthesis method
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Paragraph 0045; 0047, (2017/01/26)
The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method of 6-chloroimidazo[1,2-alpha]pyridyl-3-formic acid. The method comprises the following steps: reacting N,N-dimethylformamidodimethyl acetal with 2-amino-5-chloropyridine at 40-100 DEG C for 2-8 hours to obtain an intermediate, reacting the intermediate with ethyl chloroacetate at 60-160 DEG C for 3-15 hours under the action of an alkali, concentrating by rotary evaporation to obtain an ethyl 6-chloroimidazo[1,2-alpha]pyridyl-3-formate crude product, and recrystallizing the crude product to obtain a pure product; and carrying out hydrolysis reaction in a certain solvent under the action of an alkali for 1-5 hours, neutralizing with hydrochloric acid, filtering, washing with water, and drying to directly obtain the 6-chloroimidazo[1,2-alpha]pyridyl-3-formic acid pure product. The method has the advantages of accessible reaction raw materials, reasonable price, mild reaction conditions and simple after-treatment, and is easy to operate and control; and the product has the advantages of stable quality and high purity.