55736-72-6Relevant academic research and scientific papers
FLAVONE COMPOUNDS FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS DISEASE
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Page/Page column 52; 73, (2020/05/06)
The present invention provides flavone derivatives having the general formula (I) which are useful for the treatment of Hepatitis B Virus infection (HBV). The compounds act as cccDNA (covalently closed circular DMA) inhibitors.
Synthesis method for raw material drugs of dicamba
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Paragraph 0020, (2018/01/12)
The invention relates to a synthesis method for raw material drugs of dicamba. The synthesis method for the raw material drugs of dicamba comprises the following steps: taking 2,5-dichlorophenol as a starting material, carrying out esterification under the actions of an organic solvent and an organic esterification reagent to generate 2,5-dichlorophenol acetate; dissolving 2,5-dichlorophenol acetate in the organic solvent and adding a catalyst to generate Fries rearrangement, thus generating 3,6-dichloro-2-hydroxyacetophenone; making 3,6-dichloro-2-hydroxyacetophenone react with a methylating reagent under the action of an acid-binding agent to obtain 3,6-dichloro-2-methylacetophenone; synthesizing dicamba (3,6-dichloro-2-methoxybenzoic acid) under the action of 3,6-dichloro-2-methylacetophenone. The synthesis method for the raw material drugs of dicamba disclosed by the invention is simple in process, highly available in raw materials and the catalyst, low in cost, simple in post-treatment operation, low in environmental pollution, high in safety of reaction operation, high in reaction yield, good in product quality and favorable for industrialization.
