317-46-4Relevant articles and documents
Preparation method of 2-fluoro-3-nitrobenzoic acid
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Paragraph 0023-0035, (2022/01/08)
The invention discloses a preparation method of 2-fluoro-3-nitrobenzoic acid (II), which comprises the following steps: carrying out fluorine ortho-lithiation, dry ice carbonyl insertion reaction and acidic hydrolysis on 2-fluoronitrobenzene (I) by utilizing lithium diisopropylamide or tert-butyl lithium under a low-temperature condition to prepare the target product 2-fluoro-3-nitrobenzoic acid. The method has the advantages of mild reaction conditions, no need of transition metal catalysis, good selectivity, high yield, simple and efficient process, environmental protection, economy and suitableness for large-scale preparation;.
Synthesis method of 2-fluoro-3-nitrobenzoic acid intermediate raw material
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, (2021/06/26)
The invention discloses a synthesis method of a 2-fluoro-3-nitrobenzoic acid intermediate raw material. The invention provides a novel synthesis route, and an important medical intermediate can be rapidly and conveniently prepared from cheap and easily available raw materials. The process method comprises the following steps: starting from o-methylphenol, carrying out nitration reaction to selectively generate a key intermediate 2-methyl-6-nitrophenol, carrying out hydroxyl chlorination to generate 2-chloro-3-nitrotoluene, then carrying out fluorination reaction to generate 2-fluoro-3-nitrotoluene, and finally oxidizing methyl under the action of an oxidant to generate 2-fluoro-3-nitrobenzoic acid. The method is not only high in yield, but also suitable for large-scale production.
IMINOTETRAHYDROPYRIMIDINONE DERIVATIVES AS PLASMEPSIN V INHIBITORS
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Page/Page column 62, (2017/07/05)
A series of 2-imino-6-methyltetrahydropyrimidin-4(lH)-one derivatives, substituted in the 6-position by a phenyl moiety which in turn is meta-substituted by an optionally substituted unsaturated fused bicyclic ring system containing at least one nitrogen atom, being selective inhibitors of plasmepsin V activity, are beneficial as pharmaceutical agents, especially in the treatment of malaria.
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
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Page/Page column 152, (2011/07/09)
Compounds and salts thereof, formulations thereof, conjugates thereof, derivatives thereof, forms thereof and uses thereof are described. In certain aspects and embodiments, the described compounds or salts thereof, formulations thereof, conjugates thereof, derivatives thereof, forms thereof are active on each of B-Raf, B-Raf V600E and c-Raf-1 protein kinase. In certain aspects and embodiments, the described compounds are active in inhibiting proliferation of a Ras mutant cell line. Also described are methods of use thereof to treat diseases and conditions, including melanoma, glioma, glioblastoma, pilocytic astrocytoma, liver cancer, biliary tract cancer, cholangiocarcinoma, colorectal cancer, lung cancer, bladder cancer, gallbladder cancer, breast cancer, pancreatic cancer, thyroid cancer, kidney cancer, ovarian cancer, adrenocortical cancer, prostate cancer, gastrointestinal stromal tumors, medullary thyroid cancer, tumor angiogenesis, acute myeloid leukemia, chronic myelomonocytic leukemia, childhood acute lymphoblastic leukemia, plasma cell leukemia, and multiple myeloma.
BENZENE SULFONAMIDE THIAZOLE AND OXAZOLE COMPOUNDS
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Page/Page column 87-88, (2011/06/16)
The present invention provides thiazole sulfonamide and oxazole sulfonamide compounds, compositions containing the same, as well as processes for the preparation and methods for their use as pharmaceutical agents.
Benzene Sulfonamide Thiazole and Oxazole Compounds
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Page/Page column 53, (2009/12/23)
The present invention provides thiazole sulfonamide and oxazole sulfonamide compounds, compositions containing the same, as well as processes for the preparation and methods for their use as pharmaceutical agents.