Application of 8-alkylberberine salt in the preparation of drugs for the prevention and treatment of lung cancer
A technology of berberine salt and berberine, which is applied in the field of medicine, can solve problems such as long-chain 8-alkyl berberine salts that have not yet been reported, and achieve good anti-lung cancer effect
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Embodiment 1
[0034] Embodiment 1: 8-dodecyl berberine hydrochloride
[0035]
[0036] It is prepared as follows:
[0037] ①. Dry all reaction glass instruments, weigh 0.12mol of dried magnesium chips and place in a 250mL three-necked flask, use 60mL of anhydrous tetrahydrofuran as the reaction solvent, add 0.1mol of n-dodecane chloride under nitrogen protection, Prepare the corresponding Grignard reagents.
[0038] ②. Weigh 0.05mol of dry berberine hydrochloride and place it in a 500mL three-necked flask, add 25mL of anhydrous tetrahydrofuran to form a suspension of berberine hydrochloride, and then place it in an ice bath to 10°C under nitrogen protection.
[0039] ③. Slowly add the prepared Grignard reagent to the berberine hydrochloride salt suspension under nitrogen protection and ice bath, and stir at the same time. After the addition, remove the ice bath, return to room temperature, and heat to reflux for 2 hours to complete the reaction.
[0040] ④, centrifuge the reaction solu...
Embodiment 2
[0043] Example 2: 8-tetradecylberberine bromate
[0044]
[0045] Its preparation process is as follows:
[0046] ①. Dry all reaction glass instruments, weigh 0.12mol of dried magnesium chips and place in a 250mL three-neck flask, use 60mL of anhydrous ether as the reaction solvent, add 0.1mol of n-tetradecane bromide under nitrogen protection, Prepare the corresponding Grignard reagents.
[0047] ②. Weigh 0.05mol of dry berberine hydrochloride and place it in a 500mL three-neck flask, add 25mL of anhydrous ether to form a suspension of berberine hydrochloride, and then place it in an ice bath to 0°C under nitrogen protection.
[0048] ③. Slowly add the prepared Grignard reagent to the berberine hydrochloride salt suspension under nitrogen protection and ice bath, and stir at the same time. After the addition, remove the ice bath, return to room temperature, and heat to reflux for 2 hours to complete the reaction.
[0049] ④, centrifuge the reaction solution, take the sup...
Embodiment 3
[0052] Embodiment 3: 8-hexadecyl berberine iodate
[0053]
[0054] Its preparation process is as follows:
[0055] ①. Dry all the reaction glass instruments, weigh 0.12mol of dried magnesium chips and place them in a 250mL three-neck flask, use 60mL of dioxane as the reaction solvent, add 0.1mol of n-hexadecane bromide under nitrogen protection , to prepare the corresponding Grignard reagents.
[0056] ②. Weigh 0.05 mol of dry berberine hydrochloride salt into a 500mL three-neck flask, add 25mL of dioxane to form a suspension of berberine hydrochloride salt, and then ice-bath to 0°C under nitrogen protection.
[0057] ③. Slowly add the prepared Grignard reagent to the berberine hydrochloride salt suspension under nitrogen protection and ice bath, and stir at the same time. After the addition, remove the ice bath, return to room temperature, and heat to reflux for 2 hours to complete the reaction.
[0058] ④, centrifuge the reaction solution, take the supernatant, then ad...
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