[CH3:1][NH:2][CH3:3].[Cl:4][C:5]1[CH:6]=[C:7]2[C:16](=[C:17]3[C:22]=1[CH:21]=[CH:20][CH:19]=[N:18]3)[NH:15][S:14](=[O:24])(=[O:23])[C:13]1[C:8]2=[CH:9][C:10]([C:25](O)=[O:26])=[CH:11][CH:12]=1.CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1>CN(C=O)C.O.C(Cl)Cl>[CH3:1][N:2]([CH3:3])[C:25]([C:10]1[CH:9]=[C:8]2[C:13]([S:14](=[O:24])(=[O:23])[NH:15][C:16]3[C:7]2=[CH:6][C:5]([Cl:4])=[C:22]2[C:17]=3[N:18]=[CH:19][CH:20]=[CH:21]2)=[CH:12][CH:11]=1)=[O:26]Dimethyl amine (0.2M in THF, 2.77 ml, 0.69 mmol) was added to a solution of 12-chloro-6,6-dioxo-5,6-dihydro-6λ*6*-thia-4,5-diaza-chrysene-9-carboxylic acid 524 (100 mg, 0.27 mmol), EDC.HCl (80 mg, 0.41 mmol), HOBt (56 mg, 0.41 mmol) and TEA (0.12 ml, 0.83 mmol) in DMF (1 ml) and the mixture was stirred at room temperature for 12 h. The mixture was diluted with water and DCM. The organic phase was dried (Na2SO4) and concentrated in vacuo. The crude residue was purified by column chromatography with chloroform/MeOH (95:5) as the eluent to give the title compound (45 mg, 42%).
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