149457-03-4Relevant articles and documents
Preparation method of N-[4-(2-formylaminoacetyl)-5-hydroxy-2-phenoloxyphenyl]methanesulfonamide
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Paragraph 0020-0027, (2021/10/27)
The invention discloses a preparation method of N-[4-(2-formylaminoacetyl)-5-hydroxy-2-phenoloxyphenyl]methanesulfonamide. The preparation method comprises the following steps: with N-[4-(2-formylaminoacetyl)-5-methoxy-2-phenoloxyphenyl]methanesulfonamide as a raw material, dissolving the raw material in N,N-dimethylformamide (DMF) by using NaBr, and carrying out a demethylation reaction to obtain N-[4-(2-formylaminoacetyl)-5-hydroxy-2-phenoloxyphenyl]methanesulfonamide. The preparation method of N-[4-(2-formylaminoacetyl)-5-hydroxy-2-phenoloxyphenyl]methanesulfonamide provided by the invention is friendly to environment, simple in process, high in yield and low in cost.
Synthesis and antiinflammatory activity of 7-methanesulfonylamino-6- phenoxychromones. Antiarthritic effect of the 3-formylamino compound (T-614) in chronic inflammatory disease models
Inaba, Takihiro,Tanaka, Keiichi,Takeno, Ryuko,Nagaki, Hideyoshi,Yoshida, Chosaku,Takano, Shuntaro
, p. 131 - 139 (2007/10/03)
A group of derivatives of 7-methanesulfonylamino-6-phenoxychromone (1) at the pyrone and phenoxy rings was synthesized starting with 4-chloro-3- nitroanisole and evaluated against acute and chronic inflammations in oral administration in animals. Significant potency in the rat models of carrageenin-induced edema (CPE) and adjuvant-induced arthritis (AA) was realized with 2'-fluoro and 2',4'-difluoro derivatives (9a and 9d), and 3- formylamino derivative (19a) and its 2'-fluoro and 2',4'-difluoro compounds (22a and 22d), displaying AA therapeutic effect of ED40=2.5-7.1 mg/kg/d for 7 d and AA prophylactic effect of 53-70% inhibition at the dosage of 3 mg/kg/d for 22 d. To identify a candidate for further pharmacological study, the five compounds were subjected to evaluation of their gastro-ulcerogenic liability, leading to selection of the fluorine-free compound 19a which did not cause acute ulceration at 300 mg/kg in oral administration in rats. Compound 19a (ED40=3.6 mg/kg in established AA) possessed good therapeutic efficacy against type II collagen-induced arthritis in DBA/1J mice with doses of 30 and 100 mg/kg, suggesting the development of 19a (designated T-614) as a prospective disease-modifying antirheumatic agent. In addition, a preparative-scale synthetic route to T-614 has been established.