1-(4-Bromophenyl)-4-methylpiperazine → N-Methyl-N-(3-{2-[4-(4-methyl-piperazin-1-yl)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-8-yl}-phenyl)-methanesulfonamide

反応式

[NH2:1][C:2]1[N:22]=[C:5]2[C:6]([C:10]3[CH:11]=[C:12]([N:16]([CH3:21])[S:17]([CH3:20])(=[O:19])=[O:18])[CH:13]=[CH:14][CH:15]=3)=[CH:7][CH:8]=[CH:9][N:4]2[N:3]=1.Br[C:24]1[CH:29]=[CH:28][C:27]([N:30]2[CH2:35][CH2:34][N:33]([CH3:36])[CH2:32][CH2:31]2)=[CH:26][CH:25]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)CCCCC1>>[CH3:21][N:16]([C:12]1[CH:13]=[CH:14][CH:15]=[C:10]([C:6]2[C:5]3[N:4]([N:3]=[C:2]([NH:1][C:24]4[CH:25]=[CH:26][C:27]([N:30]5[CH2:35][CH2:34][N:33]([CH3:36])[CH2:32][CH2:31]5)=[CH:28][CH:29]=4)[N:22]=3)[CH:9]=[CH:8][CH:7]=2)[CH:11]=1)[S:17]([CH3:20])(=[O:19])=[O:18]

参加物

反応物 3

HCID 118176751-(4-Bromophenyl)-4-methylpiperazine

HCID 249469872,2'-Bis(dicyclohexylphosphino)-1,1'-biphenyl

HCID 67481389N-[3-(2-Amino-[1,2,4]triazolo[1,5-a]pyridin-8-yl)-phenyl]-N-methyl-methanesulfonamide

生成物 1

HCID 49838896N-Methyl-N-(3-{2-[4-(4-methyl-piperazin-1-yl)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-8-yl}-phenyl)-methanesulfonamide

実験手順

A round bottom flask was charged with potassium carbonate (0.56 g, 4.0 mmol) and acetone (20 mL). To the suspension was added N-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-phenyl]-methanesulfonamide (1.0 g, 3.4 mmol) followed by iodomethane (0.25 mL, 4.0 mmol). The mixture was stirred at room temperature for 18 hours. The mixture was diluted with dichloromethane (20 mL), filtered through a plug of diatomaceous earth, rinsed with dichloromethane and evaporated to a viscous oil. The material was subjected to high vacuum for 18 hours. N-Methyl-N-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-phenyl]-methanesulfonamide was isolated as pale yellow solid (1.03 g, 98%). 1H NMR (400 MHz, CDCl3, δ, ppm): 7.76-7.70 (m, 2H), 7.53 (d, J=7.9 Hz, 1H), 7.39 (t, J=7.5 Hz, 1H), 3.34 (s, 3H), 2.86 (s, 3H), 1.35 (s, 12H). MS=312 (MH)+. 127b) N-[3-(2-Amino-[1,2,4]triazolo[1,5-a]pyridin-8-yl)-phenyl]-N-methyl-methanesulfonamide was prepared from 8-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (500.0 mg, 2.347 mmol) and N-methyl-N-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-phenyl]-methanesulfonamide (800.0 mg, 2.571 mmol) in a manner analogous to Example 2c. Product isolated as a white foam (0.529 g, 71%). 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 8.57 (d, J=6.5 Hz, 1H), 8.13-8.10 (m, 1H), 8.07 (d, J=7.9 Hz, 1H), 7.75 (d, J=7.5 Hz, 1H), 7.53 (t, J=8.0 Hz, 1H), 7.45 (d, J=8.0 Hz, 1H), 6.99 (t, J=6.9 Hz, 1H), 6.12 (s, 2H), 3.31 (s, 3H), 3.01 (s, 3H). MS=318 (MH)+. 127c) N-Methyl-N-(3-{2-[4-(4-methyl-piperazin-1-yl)-phenylamino]-[1,2,4]triazolo[1,5-a]pyridin-8-yl}-phenyl)-methanesulfonamide was prepared from N-[3-(2-amino-[1,2,4]triazolo[1,5-a]pyridin-8-yl)-phenyl]-N-methyl-methanesulfonamide (75.0 mg, 0.236 mmol) and 1-(4-bromo-phenyl)-4-methyl-piperazine (67.0 mg, 0.262 mmol) with 2,2′-bis-dicyclohexylphosphanyl-biphenyl (25.0 mg, 0.0457 mmol) as the ligand in a manner analogous to Example 2d. Product isolated as a yellow foam (0.033 g, 28%). 1H NMR (400 MHz, CDCl3, δ, ppm): 8.41 (d, J=6.6, 1H), 8.13 (s, 3H), 7.93 (d, J=7.9 Hz, 1H), 7.59 (d, J=7.4 Hz, 1H), 7.56-7.45 (m, 3H), 7.44 (dd, J=8.2, 1.2 Hz, 1H), 6.98-6.92 (m, 3H), 6.64 (s, 1H), 3.42 (s, 3H), 3.19-3.14 (m, 4H), 2.89 (s, 3H), 2.63-2.57 (m, 4H), 2.36 (s, 3H). MS=492 (MH)+.