[C:1]1([N:7]2[C:19]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[C:13]3[C:8]2=[CH:9][CH:10]=[CH:11][CH:12]=3)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.P(Cl)(Cl)(Cl)=O.CN([CH:28]=[O:29])C>ClC(Cl)C.Cl>[C:1]1([N:7]2[C:8]3[CH:9]=[CH:10][C:11]([CH:28]=[O:29])=[CH:12][C:13]=3[C:14]3[C:19]2=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1To 0.49 g of N-phenylcarbazole in 2 mL of dichloroethane is added 0.19 mL of phosphorus oxychloride and 0.5 mL of DMF. The resulting mixture is stirred at 40° C. overnight. After stirring, 1 mL of 1 M HCl is added. After 5 additional minutes, the mixture is diluted with 1 M HCl and extracted with ethyl acetate. The crude product is purified by column chromatography on silica gel to give 60 mg of Compound 7.
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