[NH2:1][CH2:2][CH2:3][N:4]1[CH2:8][CH2:7][CH2:6][CH2:5]1.P(C#N)(OCC)(OCC)=O.C(N(CC)CC)C.[Br:26][C:27]1[CH:28]=[C:29]([CH:33]=[CH:34][CH:35]=1)[C:30](O)=[O:31]>CN(C)C=O.O>[Br:26][C:27]1[CH:28]=[C:29]([C:30]([NH:1][CH2:2][CH2:3][N:4]2[CH2:8][CH2:7][CH2:6][CH2:5]2)=[O:31])[CH:33]=[CH:34][CH:35]=1
1-(2-Aminoethyl)pyrrolidine (4.34 g), diethyl cyanophosphate (5.57 ml) and triethylamine (10.4 ml) were added to a solution of 3-bromobenzoic acid (5.00 g) in N,N-dimethylformamide (DMF; 60 ml), and the mixture was stirred at room temperature for 16 hours. The reaction mixture was diluted with water and then extracted with diethyl ether. The extract was dried over anhydrous magnesium sulfate, and then the solvent was evaporated under reduced pressure. The residues were crystallized from hexane to give the title compound (6.31 g).
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