Br[CH2:2][C:3]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=O.[NH2:11][C:12]1[CH:17]=[CH:16][C:15]([Br:18])=[CH:14][N:13]=1.C(=O)([O-])O.[Na+]>C(O)C.O>[Br:18][C:15]1[CH:16]=[CH:17][C:12]2[N:13]([CH:2]=[C:3]([C:5]3[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=3)[N:11]=2)[CH:14]=11.99 g of 2-bromo-1-phenylethanone, 1.73 g of 2-amino-5-bromopyridine and 1 g of sodium hydrogen carbonate in a mixture of 20 ml of ethanol and 5 ml of water are placed in a round-bottomed flask. The mixture is heated at 80° C. for 4 h and left to cool and 40 ml of water are added. The mixture is stirred for 15 min and the precipitate is then recovered by filtration; it is washed with water and then with diisopropyl ether and dried in a desiccator. 1.8 g of compound are obtained. Mp=192-194° C.
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