4-Methoxybenzylamine → 6-bromo-8-cyclopentyl-2-(4-methoxy-benzylamino)-5-methyl-8H-pyrido[2,3-d]pyrimidin-7-one
反応式
[Br:1][C:2]1[C:14](=[O:15])[N:13]([CH:16]2[CH2:20][CH2:19][CH2:18][CH2:17]2)[C:5]2[N:6]=[C:7](S(C)=O)[N:8]=[CH:9][C:4]=2[C:3]=1[CH3:21].[CH3:22][O:23][C:24]1[CH:31]=[CH:30][C:27]([CH2:28][NH2:29])=[CH:26][CH:25]=1>C1(C)C=CC=CC=1>[Br:1][C:2]1[C:14](=[O:15])[N:13]([CH:16]2[CH2:20][CH2:19][CH2:18][CH2:17]2)[C:5]2[N:6]=[C:7]([NH:29][CH2:28][C:27]3[CH:30]=[CH:31][C:24]([O:23][CH3:22])=[CH:25][CH:26]=3)[N:8]=[CH:9][C:4]=2[C:3]=1[CH3:21]参加物
4
実験手順
A suspension of 6-bromo-8-cyclopentyl-2-methanesulfinyl-5-methyl-8H-pyrido[2,3-d]pyrimidin-7-one (1.00 g, 2.70 mmol) and 4-methoxybenzylamine (0.39 mL, 4.0 mmol) in toluene (15 mL) was heated under reflux for 2 hours. The solution was cooled, and the resulting solid was collected by filtration to give 6-bromo-8-cyclopentyl-2-(4-methoxy-benzylamino)-5-methyl-8H-pyrido[2,3-d]pyrimidin-7-one (1.04 g, 86.4%). 1H NMR δ (400 MHz, CDCl3) 1.6 (m, 2H), 1.8 (m, 2H), 2.0 (m, 2H), 2.2 (m, 2H), 2.53 (s, 3H), 3.79 (s, 3H), 4.59 (m, 2H), 5.96 (m, 1H), 6.1 (m, 1H), 6.86 (d, J=8.3 Hz, 2H), 7.27 (d, J=8.1 Hz, 2H), 8.5 (br s, 1H). MS (APCI) (C21H23Br1N4O2): Calc for M+H, 443.1; Found, 443.1