53087-13-1Relevant articles and documents
ARYL SULFONAMIDES AS SMALL MOLECULE STAT3 INHIBITORS
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Paragraph 00278; 00280, (2021/01/29)
The present disclosure provides pharmaceutical compositions comprising aryl sulfonamide Stat3 small molecule inhibitors and certain pharmaceutically acceptable salts thereof, and methods of their use for treating cancer.
Preparation method of hydroxyphenylboronic acid
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Paragraph 0026-0028, (2020/05/08)
The invention discloses a preparation method of hydroxyphenylboronic acid, which belongs to the technical field of boric acid synthesis in medical intermediates. The method comprises the following steps: starting from bromophenol, carrying out BOC, trimethylsilyl or benzyl protection, forming a Grignard reagent, reacting with borate, or carrying out one-pot reaction with borate and n-butyllithium,and hydrolyzing to obtain hydroxyphenylboronic acid. According to the invention, cheap and easily available protecting groups are adopted, so that the protecting groups are easy to remove during boronation reaction hydrolysis, industrial amplification is easy to realize, batch production is carried out on the scale of dozens of kilograms, and the process stability is good.
METHOD FOR PRODUCING XANTHENE DERIVATIVE, COMPOUND AND SALT THEREOF
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Paragraph 0193-0194, (2019/01/05)
PROBLEM TO BE SOLVED: To provide a production method capable of efficiently producing a xanthene derivative at a low cost with fewer production steps compared with conventional production methods in the production of a xanthene derivative, and a compound