1-Methyl-4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazine → 1-(2,5-Dichlorobenzyl)-4-methyl-7-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

HRID 2074656Notes

Reaction equation

HRID 2074656 reaction equation
[Cl:1][C:2]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:3]=1[CH2:4][N:5]1[CH2:10][CH2:9][N:8]([CH3:11])[C:7]2[N:12]=[CH:13][C:14](I)=[CH:15][C:6]1=2.[CH3:22][N:23]1[CH2:28][CH2:27][N:26]([C:29]2[CH:34]=[CH:33][C:32](B3OC(C)(C)C(C)(C)O3)=[CH:31][N:30]=2)[CH2:25][CH2:24]1>>[Cl:1][C:2]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:3]=1[CH2:4][N:5]1[CH2:10][CH2:9][N:8]([CH3:11])[C:7]2[N:12]=[CH:13][C:14]([C:32]3[CH:31]=[N:30][C:29]([N:26]4[CH2:25][CH2:24][N:23]([CH3:22])[CH2:28][CH2:27]4)=[CH:34][CH:33]=3)=[CH:15][C:6]1=2

Participants

3

Reactant 2

HCID 27696181-Methyl-4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazineHCID 578859471-(2,5-Dichlorobenzyl)-7-iodo-4-methyl-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

Product 1

HCID 469067161-(2,5-Dichlorobenzyl)-4-methyl-7-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1,2,3,4-tetrahydropyrido[2,3-b]pyrazineYield 43%

Procedure

1-(2,5-Dichlorobenzyl)-7-iodo-4-methyl-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine (83 mg) was coupled to 1-methyl-4-[5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)pyridin-2-yl]piperazine as in General Procedure 4B to give the title compound as a brown solid (43% yield). LCMS: m/z=483.33 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 2.33 (3H, s), 2.52 (4H, t, J=5.1 Hz), 3.16 (3H, s), 3.53 (8H, m), 4.45 (2H, s), 6.45 (1H, d, J=1.8 Hz), 6.65 (1H, d, J=8.8 Hz), 7.18 (1H, dd, J=8.5, 4.8 Hz), 7.25 (1H, d, J=2.3 Hz), 7.32 (1H, d, J=8.3 Hz), 7.52 (1H, dd, J=8.6, 2.5 Hz), 7.75 (1H, d, J=1.8 Hz), 8.22 (1H, d, J=2.5 Hz).

Sources & evidence

ORD record
ord-0fc063df50484d71ad0768871e93d2b7
Source dataset
uspto-grants-2011_04
Patent number
US07919502B2

Reaction notes

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