1-{3-[p-bis-(2-chloroethyl)amino]amphetamine}formyl-5-fluorouracil and its preparation and application
A technology based on fluorouracil and amphetamine, applied in the field of chlorambucil derivatives, can solve the problems of easy drug resistance and inability to completely kill tumor cells, achieve good anticancer activity, improve curative effect, and reduce toxicity side effects
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Embodiment 1
[0105] Example 1. Synthesis of 1-{3-[p-bis-(2-chloroethyl)amino]amphetamino}formyl-5-fluorouracil (YY-001)
[0106] (1) Synthesis of 3-[to-bis-(2-chloroethyl)amino]phenylpropyl isocyanate
[0107] The reaction formula is as follows:
[0108]
[0109] Experimental steps:
[0110] In a 100mL round bottom flask, add 1.0g chlorambucil (3.287mmol) and 10ml dry toluene, stir to dissolve, add 0.4g powdered 4A molecular sieve, and then add 1.403g (5.10mmol) to the solution Diphenylphosphoryl azide (DPPA) and 0.515g (5.10mmol) of triethylamine were stirred at room temperature until the reaction was complete (about 30 minutes), and about 10ml of saturated NaHCO was added to the reaction solution 3 aqueous solution, stirred for 2-3 minutes, added ethyl acetate (30ml×3) for extraction three times, combined the organic phases, and washed with anhydrous NaSO 4 Drying, column separation, using 200-300 mesh silica gel as the stationary phase, and dichloromethane and petroleum ether mixt...
Embodiment 2
[0119] Example 2. Synthesis of 1-{3-[p-bis-(2-chloroethyl)amino]amphetamino}formyl-5-fluorouracil (YY-001)
[0120] (1) Synthesis of 3-[to-bis-(2-chloroethyl)amino]phenylpropyl isocyanate
[0121] The reaction formula is as follows:
[0122]
[0123] Into a 100mL round bottom flask, add 1.0g chlorambucil (3.287mmol) and 5ml acetone, stir to dissolve it, add 0.365g (3.616mmol) triethylamine, cool to 0 to -5°C in an ice-salt bath, A solution of 0.392 g (3.616 mmol) of ethyl chloroformate in acetone (2 ml) was slowly added dropwise to the solution, and after the drop was completed, stirring was continued at 0 to -5° C. for 30 minutes. Then, 0.427 g (6.574 mmol) of an aqueous solution (1.5 ml) of sodium azide was slowly added dropwise to the solution, and stirring was continued at 0 to -5°C for 30 minutes. Add 30ml of ice water to the solution, pour the mixture into a separatory funnel, add 50ml of toluene to the separatory funnel in four times to extract the reaction product...
Embodiment 3
[0126] Example 3. Synthesis of 1-{3-[p-bis-(2-chloroethyl)amino]amphetamino}formyl-5-fluorouracil (YY-001)
[0127] (1) Synthesis of 3-[to-bis-(2-chloroethyl)amino]phenylpropyl isocyanate
[0128] The reaction formula is as follows:
[0129]
[0130] In a 100ml flask, add 1.0g (3.287mmol) chlorambucil, 30ml chloroform and 2-3 drops of DMF, stir, 0.782g (6.616mmol) thionyl chloride (MW: 119), stir at room temperature under nitrogen protection After 4 hours, the reaction was carried out at reflux for 1 hour, and the solvent and excess thionyl chloride were removed under reduced pressure to obtain 4-[bis(2-chloroethyl)amino]benzenebutyryl chloride (A).
[0131] Add 0.321 g (4.950 mmol) of sodium azide and 10 ml of anhydrous tetrahydrofuran into a 100 ml flask, heat and stir until reflux. Dissolve the 4-[bis(2-chloroethyl)amino]benzenebutyryl chloride obtained above in 10ml of tetrahydrofuran and add it to the constant pressure dropping funnel. After reflux occurs, start to d...
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