[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]#[C:9][CH:10]2[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]2)=[CH:4][C:3]=1[C:16]1[N:25]=[CH:24][C:23]2[CH2:22][CH2:21][C:20]3[N:26]=[C:27]([NH:29][C:30](=[O:32])[CH3:31])[S:28][C:19]=3[C:18]=2[N:17]=1.C(N(CC)CC)C.[CH3:40][S:41](Cl)(=[O:43])=[O:42]>ClCCl>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]#[C:9][CH:10]2[CH2:11][CH2:12][N:13]([S:41]([CH3:40])(=[O:43])=[O:42])[CH2:14][CH2:15]2)=[CH:4][C:3]=1[C:16]1[N:25]=[CH:24][C:23]2[CH2:22][CH2:21][C:20]3[N:26]=[C:27]([NH:29][C:30](=[O:32])[CH3:31])[S:28][C:19]=3[C:18]=2[N:17]=1A mixture of 50 mg (0.11 mmol) N-[8-(2-chloro-5-piperidin-4-ylethynyl-phenyl)-4,5-dihydro-thiazolo[4,5-h]quinazolin-2-yl]-acetamide, 65 μL triethylamine and 15 μL methanesulphonic acid chloride in 1 mL dichloromethane is stirred for three hours at ambient temperature. The reaction mixture is washed with saturated aqueous sodium hydrogen carbonate solution and the organic phase is evaporated down. The residue remaining is purified by RP-HPLC. Yield: 23 mg yellow solid (MH+=542; RT=3.07; Method A)
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