[CH3:1][P:2]([CH2:5][N:6]1[CH2:11][CH2:10][NH:9][CH2:8][CH2:7]1)([CH3:4])=[O:3].C(N(CC)CC)C.Br[CH2:20][C:21]1[CH:26]=[CH:25][C:24]([N+:27]([O-:29])=[O:28])=[CH:23][C:22]=1[C:30]([F:33])([F:32])[F:31]>ClCCl>[CH3:4][P:2]([CH2:5][N:6]1[CH2:7][CH2:8][N:9]([CH2:20][C:21]2[CH:26]=[CH:25][C:24]([N+:27]([O-:29])=[O:28])=[CH:23][C:22]=2[C:30]([F:31])([F:32])[F:33])[CH2:10][CH2:11]1)([CH3:1])=[O:3]1-[(dimethylphosphoryl)methyl]piperazine (3.6 mmol) was dissolved in 20 mL of anhydrous dichloromethane. Triethylamine (4.04 g, 11 eq.) was carefully added. The reaction solution temperature rose to 30° C. before cooling down to room temperature after 5 minutes. After 1-(bromomethyl)-4-nitro-2-(trifluoromethyl)benzene (60 weight %, 3.88 g, 7.9 mmol, 2.2 eq) was added in one portion, the reaction mixture was stirred at room temperature for 30 minutes under N2 protection. After the volatile components were evaporated, the reaction mixture was purified via column chromatography to give title compound as light yellow solid (740 mg). MS (LC/MS): 378.3 [M−]. 31P-NMR (300 MHz, CDCl3): 42.8.
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