127049-87-0Relevant articles and documents
N-SULFONYL BENZAMIDE DERIVATIVE WITH HETEROCYCLIC SUBSTITUENT, PREPARATION METHOD THEREFOR AND PHARMACEUTICAL APPLICATION THEREOF
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Paragraph 0162; 0163, (2019/01/04)
The present invention discloses an N-sulfonyl benzamide derivative with a heterocyclic substituent, and a preparation method therefor and a pharmaceutical application thereof. More specifically, the invention discloses a compound represented by formula (II) or a pharmaceutically acceptable salt, stereoisomer, solvent compound, or prodrug thereof, and a preparation method therefor and an application thereof. Refer to the specification for definitions of each group in the formula.
Process for producing 4-benzoyl-5-hydroxypyrazoles
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, (2008/06/13)
A process for producing a 4-benzoyl-5-hydroxylpyrazole of the formula III: STR1 which comprises reacting carbon monoxide and a 5-hydroxypyrazole of the formula II: STR2 to a substituted benzene of the formula I: STR3 wherein X is a bromine atom, an iodine atom or a diazonium tetrafluoroboron salt group, in the presence of a base and a catalyst of Group VIII of the Periodic Table.