2-(4-Methylpiperazino)pyrimidine-5-boronic acid pinacol ester → 1-(2-Chloro-3,6-difluorobenzyl)-7-[2-(4-methylpiperazin-1-yl)-pyrimidin-5-yl]-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

HRID 659379Notes

Reaction equation

HRID 659379 reaction equation
[Cl:1][C:2]1[C:19]([F:20])=[CH:18][CH:17]=[C:16]([F:21])[C:3]=1[CH2:4][N:5]1[CH2:10][CH2:9][NH:8][C:7]2[N:11]=[CH:12][C:13](I)=[CH:14][C:6]1=2.[CH3:22][N:23]1[CH2:28][CH2:27][N:26]([C:29]2[N: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[C:19]([F:20])=[CH:18][CH:17]=[C:16]([F:21])[C:3]=1[CH2:4][N:5]1[CH2:10][CH2:9][NH:8][C:7]2[N:11]=[CH:12][C:13]([C:32]3[CH:31]=[N:30][C:29]([N:26]4[CH2:27][CH2:28][N:23]([CH3:22])[CH2:24][CH2:25]4)=[N:34][CH:33]=3)=[CH:14][C:6]1=2

Participants

3

Reactant 2

HCID 164142282-(4-Methylpiperazino)pyrimidine-5-boronic acid pinacol esterHCID 578858681-(2-Chloro-3,6-difluorobenzyl)-7-iodo-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

Product 1

HCID 578858661-(2-Chloro-3,6-difluorobenzyl)-7-[2-(4-methylpiperazin-1-yl)-pyrimidin-5-yl]-1,2,3,4-tetrahydropyrido[2,3-b]pyrazineYield 27%

Procedure

1-(2-Chloro-3,6-difluorobenzyl)-7-iodo-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine (100 mg) was reacted with 2-(4-methylpiperazin-1-yl)pyrimidine-5-boronic acid pinacol ester as in General Procedure 4A to give the title compound as a pale orange solid (27% yield). M.p. 194-195° C., LCMS: m/z=472.09 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 2.38 (s, 3H), 2.51-2.58 (m, 4H), 3.31 (t, J=4.8 Hz, 2H), 3.49-3.58 (m, 2H), 3.89-3.97 (m, 4H), 4.51 (s, 2H), 4.95 (bs, 1H), 6.96 (s, 1H), 6.99-7.08 (m, 1H), 7.10-7.18 (m, 1H), 7.57 (s, 1H), 8.45 (s, 1H).

Sources & evidence

ORD record
ord-4ca8549dbb1f456dbb5e3dd146bdcc6a
Source dataset
uspto-grants-2011_12
Patent number
US08080561B2

Reaction notes

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