[CH3:1][O:2][C:3]1[CH:43]=[CH:42][C:6]([CH2:7][N:8]([CH2:33][C:34]2[CH:39]=[CH:38][C:37]([O:40][CH3:41])=[CH:36][CH:35]=2)[C:9]2[N:14]=[C:13]([CH3:15])[N:12]=[C:11]([C:16]3[CH:17]=[C:18]([CH2:31][OH:32])[CH:19]=[N:20][C:21]=3[NH:22][C:23]3[CH:24]=[N:25][C:26]([O:29][CH3:30])=[CH:27][CH:28]=3)[N:10]=2)=[CH:5][CH:4]=1.C(N(CC)CC)C.[CH3:51][S:52](Cl)(=[O:54])=[O:53].O>ClCCl>[CH3:51][S:52]([O:32][CH2:31][C:18]1[CH:19]=[N:20][C:21]([NH:22][C:23]2[CH:24]=[N:25][C:26]([O:29][CH3:30])=[CH:27][CH:28]=2)=[C:16]([C:11]2[N:10]=[C:9]([N:8]([CH2:7][C:6]3[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:43][CH:42]=3)[CH2:33][C:34]3[CH:35]=[CH:36][C:37]([O:40][CH3:41])=[CH:38][CH:39]=3)[N:14]=[C:13]([CH3:15])[N:12]=2)[CH:17]=1)(=[O:54])=[O:53]A suspension of (5-(4-(bis(4-methoxybenzyl)amino)-6-methyl-1,3,5-triazin-2-yl)-6-(6-methoxypyridin-3-ylamino)pyridin-3-yl)methanol (1.0 g, 1.725 mmol) in dichloromethane (25 mL, 1.725 mmol) was stirred at 0° C. and treated in one portion with triethylamine (1.092 mL, 7.85 mmol) and methanesulfonyl chloride (0.497 mL, 6.42 mmol). The resulting solution was stirred under nitrogen for 30 min. The reaction mixture was diluted with dichloromethane (10 mL) and treated with water (10 mL). The layers were separated and the aqueous layer was extracted with dichloromethane (2×50 mL) and dried over Na2SO4, filtered and concentrated in vacuo to give (5-(4-(bis(4-methoxybenzyl)amino)-6-methyl-1,3,5-triazin-2-yl)-6-(6-methoxypyridin-3-ylamino)pyridin-3-yl)methyl methanesulfonate (0.935 g, 1.422 mmol, 82% yield). m/z (ESI, +ve ion) 658.2 (M+H)+
Wird geladen…