tetracycline kinase inhibitors
A technology for selecting compounds, applied in the field of medical technology, and can solve problems such as malignant transformation
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preparation example Construction
[0144] The present invention also provides the preparation method of above-mentioned compound, but not limited to following method, and reaction equation is as follows:
[0145]
[0146] Reaction steps:
[0147] Step 1 Preparation of intermediate 1
[0148] Dissolve raw material 1 in glacial acetic acid, add 40% hydrobromic acid solution, cool in an ice-water bath, add an appropriate amount of bromine-dissolved glacial acetic acid solution dropwise, stir until the raw material is consumed, add ice water, and extract with ethyl acetate. The combined organic phases were separated and purified by silica gel column chromatography to obtain Intermediate 1.
[0149] Step 2 Preparation of Intermediate 3
[0150] Intermediate 1 and 1.2 equivalents of intermediate 2 were dissolved in tetrahydrofuran, heated to reflux until the reaction was complete, the solvent was removed by rotary evaporation, and intermediate 3 was obtained by separation and purification by silica gel column ch...
experiment example
[0174] Experimental example The in vitro enzymatic activity experiment of the compound of the present invention
[0175] Test product: compound 1 of the present invention, its chemical name and preparation method are shown in the preparation examples of compound 1.
[0176] Control drug: CH5424802, self-made (prepared with reference to the preparation method of patent CN102459172A), the structural formula is as follows:
[0177] (CH5424802)
[0178] The meanings represented by the abbreviations of the following experiments are as follows:
[0179] DMSO: dimethyl sulfoxide
[0180] DTT: Dithiothreitol
[0181] SEB: Enzyme Catalyst Buffer
[0182] ATP: adenosine triphosphate
[0183] ALK: Anaplastic Lymphoma Kinase
[0184] SA-XL665: Streptavidin-labeled donor
[0185] Experimental method: HTRF KinEASE-TK method was used to measure the inhibitory activity of ALK kinase.
[0186] 1. ALK kinase buffer preparation:
[0187] Take 20 μL of MgCl with a stock solution conc...
Embodiment 1
[0206] Example 1: 4,4-dimethyl-2-(4-morpholinopiperidin-1-yl)-9-oxo-5,9-dihydro-4H-thiazolo[5,4- f] Preparation of thieno[3,2-b]indole-7-carbonitrile (compound 1)
[0207]
[0208] (1) Preparation of 2,2-dimethyl-1,3-cyclohexanedione
[0209]
[0210] Dissolve 2-methyl-1,3-cyclohexanedione (10.1 g, 80 mmol), methyl iodide (12.5 mL, 200 mmol), and potassium carbonate (22.1 g, 160 mmol) in acetone (60 mL), Heat to reflux for 8 hours, cool, remove the solvent by rotary evaporation, then add water (200 mL), extract with dichloromethane (500 mL), take the organic layer and dry it with anhydrous sodium sulfate, remove the solvent by rotary evaporation, and cool to 0 °C. The product (7.7 g, yield 69%) was obtained.
[0211] (2) Preparation of 4-bromo-2,2-dimethyl-1,3-cyclohexanedione
[0212]
[0213] Dissolve 2,2-dimethyl-1,3-cyclohexanedione (6.4 g, 45.7 mmol) in glacial acetic acid (100 mL), add 40% hydrogen bromide solution (0.4 mL), and cool in an ice-water bath ...
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