C1(N)C(F)=C(F)C(F)=[C:3]([NH2:10])C=1F.Cl.Cl.Cl.Cl.[CH3:17][N:18]([CH3:35])[CH2:19][CH2:20][C:21]1[C:29]2[C:24](=[CH:25][CH:26]=[C:27]([CH2:30][NH:31][NH:32][CH:33]=O)[CH:28]=2)[NH:23][CH:22]=1.N1C=NC=NC=1>C(O)C>[CH3:17][N:18]([CH3:35])[CH2:19][CH2:20][C:21]1[C:29]2[C:24](=[CH:25][CH:26]=[C:27]([CH2:30][N:31]3[CH:3]=[N:10][CH:33]=[N:32]3)[CH:28]=2)[NH:23][CH:22]=1A solution of the dihydrochloride of formic acid N′-[3-(2-dimethylamino-ethyl)-1H-indol-5-ylmethyl]-hydrazide (Example 18; 6.665 g, 20 mmol), and 1,3,5-triazine (1.081 g, 13.3 mmol) in ethanol (50 ml) is heated at reflux for six hours under a nitrogen atmosphere. From the slightly hazy yellow solution, the solvent is removed on the rotavapor, and the yellow residue is stirred with sodium hydroxide (100 ml 2N solution) and chloroform (100 ml). The organic layer is separated, washed with water (100 ml) and brine (100 ml) and dried (sodium sulfate). Removal of the solvent gives the product (4.54 g, 84%) as a slightly brown oil which solidifies on standing. 1H-NMR (CDCl3, 300 MHz) δ 2.26 (s, 6H, N(CH3)2); 2.56 (m, 2H, CH2); 2.83 (m, 2H, CH2NMe2); 5.27 (s, 2H, CH2N); 6.88 (d, 1H, J=2.0 Hz, H-2); 6.92 (dd, 1H, J=8.2 Hz, J=1.8 Hz, H-6); 7.15 (d, 1H, H-7); 7.40 (d, 1H, H-4); 7.84 (s, 1 H, triazol H-?); 7.89 (s, 1H, triazol H-?); 9.24 (br s, 1H, NH). 13C-NMR (CDCl3, 75 MHz) δ 23.68 (CH2); 45.50 (N(CH3)2); 54.88 (CH2N); 60.31 (CH2NMe2); 112.18 (C-7); 114.01 (C-3); 119.26 (C-4); 122.26 (C-6); 123.24 (C-2); 124.94 (C-5); 127.87 (C-9); 136.53 (C-8); 143.00 (triazol C-5); 151.88 (triazol C-3).
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