Nitrogen mustard chromone derivative and application thereof
A technology of nitrogen mustards and chromone, applied in the field of natural medicine and medicinal chemistry, can solve the problems of high toxicity and side effects, lack of specificity of cell action, unsatisfactory therapeutic effect, etc., and achieve good anti-tumor cell proliferation effect
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Embodiment 1
[0030]
[0031] (1) 500 mg of compound 1a (3.33 mmol) was dissolved in 10 mL of DMF, then 630 μL of phosphorus oxychloride (6.72 mmol) was added dropwise, and the reaction was carried out at room temperature for 12 h. TLC monitoring showed that the reaction was basically complete, 15 mL of water was added, and crystals were precipitated, suction filtration, and drying to obtain 402.4 mg of intermediate 2a. 50 mg of intermediate 2a (0.27 mmol) was dissolved in 10 mL of isopropanol, and 1 g of basic Al was added 2 O 3 (9.80 mmol), and then refluxed at 75°C for 5 h. TLC monitoring showed that the reaction was complete, filtered with suction, and the filtrate was concentrated to obtain the crude product, which was separated by silica gel column chromatography (DCM:MeOH) to obtain compound 3a (R=-CH). 3 ).
[0032] (2) 500 mg of melphalan 5 (1.64 mmol) was dissolved in 15 mL of formic acid, then 2 mL of acetic anhydride was added, and the reaction was carried out in an oil ba...
Embodiment 2
[0035]
[0036] The step of synthesizing 3a in step (1) of Example 1 was replaced with: 553 mg of compound 1b (3.33 mmol) was dissolved in 10 mL of DMF, then 630 μL of phosphorus oxychloride (6.72 mmol) was added dropwise, and the reaction was performed at room temperature for 12 h. TLC monitoring showed that the reaction was basically complete, 15 mL of water was added, and crystals were precipitated, suction filtration, and drying to obtain 410 mg of intermediate 2b. 55 mg of intermediate 2b (0.27 mmol) was dissolved in 10 mL of isopropanol, and 1 g of basic Al was added 2 O 3 (9.80 mmol), and then refluxed at 75°C for 5 h. TLC monitoring showed that the reaction was complete, filtered with suction, and the filtrate was concentrated to obtain the crude product, which was separated by silica gel column chromatography (DCM:MeOH) to obtain compound 3b (R=-OCH). 3 ).
[0037] For the remaining steps, referring to the synthetic method of Example 1, compound 7b was prepared ...
Embodiment 3
[0039]
[0040] The step of synthesizing 3a in step (1) of Example 1 was replaced with: 500 mg of compound 1a (3.33 mmol) was dissolved in 10 mL of DMF, then 630 μL of phosphorus oxychloride (6.72 mmol) was added dropwise, and the reaction was performed at room temperature for 12 h. TLC monitoring showed that the reaction was basically complete, 15 mL of water was added, and crystals were precipitated, suction filtration, and drying to obtain 402.4 mg of intermediate 2a. 50 mg of intermediate 2a (0.27 mmol) was dissolved in 10 mL of isopropanol, and 1 g of basic Al was added 2 O 3 (9.80 mmol), and then refluxed at 75°C for 5 h. TLC monitoring showed that the reaction was complete, filtered with suction, and the filtrate was concentrated to obtain a crude product, which was separated by silica gel column chromatography (DCM:MeOH) to obtain 15 mg of compound 3a. 500 mg of compound 3a (2.62 mmol) was dissolved in 10 mL of DCM, 750 μL of phosphorus tribromide (7.90 mmol) was ...
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