Piperlongumine derivatives and medicinal composition and application to preparation of medicament for inhibiting tumor growth thereof
A technology of longinamide and derivatives, applied in drug combination, anti-tumor drugs, organic chemistry, etc., can solve problems such as inability to treat normal cells and cancer cells differently, normal cell death, side effects, etc.
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Embodiment 1
[0031] Compound 1 of the present invention (structural formula sees attached figure 1 ), when R 1 =-OCH 3 , R 2 =CH 3 Compound a is extracted from natural plants.
Embodiment 2
[0033] Compound formula 2 is synthesized according to the following steps:
[0034]
[0035] Step 1: In a 100 mL round bottom flask, add 1 g (1 equivalent) of reactant (1) and 4.10 g (1 equivalent) of reactant (2). Under argon protection, 50 mL of anhydrous DMF solvent was added. After all the reactants were dissolved, 272mg (1.1 equivalent) of sodium hydride was added at 0°C. After the reaction was stirred at 0°C for 2 hours, it was gradually warmed to room temperature; stirring was then continued overnight. After the reaction was completed, most of the DMF was removed under high vacuum, and the reaction concentrate was extracted with dichloromethane. The organic phases were combined, washed with saturated sodium bicarbonate and saturated brine, and concentrated with a rotary evaporator. Finally, the reaction product (3) is purified through a silica gel separation column. Final product: 2.65 g; Yield: 90%. Mass spectrum (HRMS, ESI): 288.1161 (M+1). Elemental analysis...
Embodiment 3
[0039] Compound formula 3 is synthesized according to the following steps:
[0040]
[0041] Step 1: In a 100 mL round bottom flask, add 1 g (1 equivalent) of reactant (1) and 4.72 g (1 equivalent) of reactant (5). Under argon protection, 50 mL of anhydrous DMF solvent was added. After all the reactants were dissolved, 272mg (1.1 equivalent) of sodium hydride was added at 0°C. After the reaction was stirred at 0°C for 2 hours, it was gradually warmed to room temperature; stirring was then continued overnight. After the reaction was completed, most of the DMF was removed under high vacuum, and the reaction concentrate was extracted with dichloromethane. The organic phases were combined, washed with saturated sodium bicarbonate and saturated brine, and concentrated with a rotary evaporator. Finally, the reaction product (6) is purified through a silica gel separation column. Final product: 2.77 g; Yield: 85%. Mass spectrum (HRMS, ESI): 318.1259 (M+1). Elemental analysis...
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