2-(N-(3-quinolyl) sulfamide or amide)-N-glycolamide derivative, and preparation method and applications thereof
A hydroxyacetamide and sulfonamide-based technology, applied in the field of biomedicine, can solve problems such as complex pathogenesis, and achieve a good effect of inhibiting the activity of HDAC
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[0050] (1) Preparation of the compound of formula (I) of the present invention
[0051] The reaction route of the present invention for preparing the compound of formula (I) is as follows:
[0052]
[0053] Wherein, A is carbonyl or sulfone; R is alkyl, aryl, substituted aryl or azaaryl; X is bromine or chlorine.
[0054] In step a, the reactant, the amine compound of formula (II) and the halogenated compound of formula (III) are directly reacted without a solvent. The halogenated compound of formula (III) may be slightly excessive, for example, the molar ratio of the amine compound of formula (II) to the halogenated compound of formula (III) may be 1:1 to 1:1.1, preferably 1:1.05. Two to four times the molar amount of the base of the halogenated compound of formula (III) can be used. The base used includes but is not limited to sodium carbonate, potassium carbonate, sodium bicarbonate or potassium bicarbonate, preferably sodium carbonate or potassium carbonate. In step a, the reac...
Embodiment 1
[0061] Example 1: 2-(3-Chloro-N-(3-quinolinyl)benzenesulfonamide)-N-hydroxyacetamide
[0062]
[0063] Step a: In a 50ml flask, dissolve 3-aminoquinoline (5.0g, 52.9mmol) in 7-chloro-N-methoxyacetamide (10.2g, 52.9mmol), then add potassium carbonate (14.6g ,105.8mmol). Then the temperature was raised to 130°C and reacted for 6 hours. After the reaction is finished, cool to room temperature, add methanol to the reaction solution to dissolve, filter, spin-dry the filtrate, and separate the white solid intermediate product 3-(N-(3-quinolinyl)benzenesulfonamido)- by silica gel column chromatography. N-methoxyacetamide (3.32g), yield: 25%;
[0064] Step b: Dissolve 2-(N-(3-quinolinyl)benzenesulfonamido)-N-methoxyacetamide (3.32g, 13.2mmol) and 3-chlorobenzenesulfonyl chloride (5.6g, 26.4 Add N,N-diisopropylethylamine (3.4g, 26.4mmol) to a 60ml N,N-dimethylformamide solution in mmol), heat to 80°C, and react for 16 hours. After the reaction, cool to room temperature, spin dry the rea...
Embodiment 2~12
[0067] The following compounds of Examples 2-12 were prepared by a method similar to that of Example 1 (see Table 1).
[0068] Table 1: The structures of the compounds of Examples 1-12 and their mass (ESI) theoretical and measured values:
[0069]
[0070]
[0071] A salt-forming method commonly used in the art is used to form an acid addition salt, a base addition salt, or a quaternary ammonium salt with the pharmaceutically acceptable acid and base of the compound prepared above. The inorganic acid can be selected from hydrochloric acid, hydrobromic acid, sulfuric acid, nitric acid and phosphoric acid; the organic acid can be selected from acetic acid, oxalic acid, citric acid, benzoic acid, salicylic acid, maleic acid, lauric acid, malic acid, fumaric acid, Succinic acid, tartaric acid, methanesulfonic acid, camphor acid, lactic acid, niacin, cinnamic acid, p-toluenesulfonic acid, benzenesulfonic acid, glutamic acid and mandelic acid; inorganic bases can be selected from alkali ...
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