3,5-Dimethylisoxazole-4-boronic acid → HCID 57886082, compound

HRID 659376Notes

Reaction equation

HRID 659376 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][C:23]1[C:27](B(O)O)=[C:26]([CH3:31])[O:25][N: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:27]3[C:23]([CH3:22])=[N:24][O:25][C:26]=3[CH3:31])=[CH:14][C:6]1=2

Participants

3

Reactant 2

HCID 27343463,5-Dimethylisoxazole-4-boronic acidHCID 578858681-(2-Chloro-3,6-difluorobenzyl)-7-iodo-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine

Product 1

HCID 57886082HCID 57886082, compoundYield 45%

Procedure

1-(2-Chloro-3,6-difluorobenzyl)-7-iodo-1,2,3,4-tetrahydropyrido[2,3-b]pyrazine (75 mg) was reacted with 3,5-dimethylisoxazole-4 boronic acid as in General Procedure 4A to give the title compound as a pale yellow solid (45% yield). M.p. 215-216° C., LCMS: m/z=393.42 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 2.22 (s, 3H), 2.36 (s, 3H), 3.31 (t, J=5.0 Hz, 2H), 3.52-3.58 (m, 2H), 4.47 (s, 2H), 4.98 (bs, 1H), 6.71 (s, 1H), 6.98-7.05 (m, 1H), 7.09-7.17 (m, 1H), 7.36 (d, J=1.3 Hz, 1H).

Sources & evidence

ORD record
ord-7a384070c9154aeca7d8bdc90024bacd
Source dataset
uspto-grants-2011_12
Patent number
US08080561B2

Reaction notes

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