1-Methyl-4-(piperidin-4-yl)piperazine → HCID 67479191, compound
Reaction equation
[Br:1][C:2]1[CH:3]=[C:4](B(O)O)[CH:5]=[CH:6][CH:7]=1.[CH3:11][N:12]1[CH2:17][CH2:16][N:15]([CH:18]2[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]2)[CH2:14][CH2:13]1>>[Br:1][C:2]1[CH:3]=[C:4]([N:21]2[CH2:20][CH2:19][CH:18]([N:15]3[CH2:14][CH2:13][N:12]([CH3:11])[CH2:17][CH2:16]3)[CH2:23][CH2:22]2)[CH:5]=[CH:6][CH:7]=1Participants
Procedure
1-[1-(3-Bromo-phenyl)-piperidin-4-yl]-4-methyl-piperazine was prepared from 3-bromophenylboronic acid (0.50 g, 2.5 mmol) and 1-methyl-4-piperidin-4-yl-piperazine (0.23 g, 1.2 mmol) in a manner analogous to Step 49a. The reaction product was isolated as a brown viscous oil (0.069 mg, 16%). 1H NMR (400 MHz, CDCl3, δ, ppm): 7.08 (t, J=8.0 Hz, 1H), 7.03 (s, 1H), 6.91 (d, J=8.0 Hz, 1H), 6.82 (d, J=8.0 Hz, 1H), 3.72 (d, J=11.7 Hz, 2H), 2.78-2.33 (m, 11H), 2.30 (s, 3H), 1.93 (d, J=12.9 Hz, 2H), 1.69-1.57 (m, 2H). MS=338, 340 (MH)+. 58b) [8-(4-Methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyri din-2-yl]-{3-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-phenyl}-amine was prepared from 8-(4-methanesulfonyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-ylamine (55.0 mg, 0.191 mmol) and 1-[1-(3-bromo-phenyl)-piperidin-4-yl]-4-methyl-piperazine (69.0 mg, 0.204 mmol) with 2,2′-bis-dicyclohexylphosphanyl-biphenyl (23.0 mg, 0.0421 mmol) as the ligand in a manner analogous to Step 2d. The title compound was isolated as a yellow solid (0.035 g, 34%). MP=237-239° C. 1H NMR (400 MHz, CDCl3, δ, ppm): 8.49 (d, J=6.5 Hz, 1H), 8.25 (d, J=6.9 Hz, 2H), 8.08 (d, J=7.7 Hz, 2H), 7.65 (d, J=7.1 Hz, 1H), 7.31 (s, 1H), 7.24-7.18 (m, 1H), 7.04-6.95 (m, 2H), 6.82 (s, 1H), 6.60 (d, J=7.9 Hz, 1H), 3.81 (d, J=11.4 Hz, 2H), 3.10 (s, 3H), 2.77 (t, J=12.2 Hz, 2H), 2.72-2.33 (m, 9H), 2.30 (s, 3H), 1.96 (d, J=11.2 Hz, 2H), 1.75-1.63 (m, 2H). MS=546 (MH)+.
Sources & evidence
- ORD record
- ord-1067c9c7eb0444b9b524ce3f2b89cb44
- Source dataset
- uspto-grants-2013_08
- Patent number
- US08501936B2
Reaction notes
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