Methanol → 4-Hydroxymethyl-3-[1-methyl-5-({5-[4-(oxetan-3-yl)piperazin-1-yl]pyridine-2-yl}amino)-6-oxo-1,6-dihydropyridin-3-yl]-5-{4,4-dimethyl-9-oxo-7-thia-10-azatricyclo[6.4.0.02,6]dodeca-1(8), 2(6)-dien-10-yl}pyridine-4-carbaldehyde
Reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]([NH:9][C:10]2[CH:15]=[CH:14][C:13]([N:16]3[CH2:21][CH2:20][N:19]([CH:22]4[CH2:25][O:24][CH2:23]4)[CH2:18][CH2:17]3)=[CH:12][N:11]=2)=[CH:5][C:4]([C:26]2[CH:27]=[N:28][CH:29]=[C:30]([N:34]3[CH2:45][CH2:44][C:43]4[C:42]5[CH2:41][C:40]([CH3:47])([CH3:46])[CH2:39][C:38]=5[S:37][C:36]=4[C:35]3=[O:48])[C:31]=2[CH:32]=[O:33])=[CH:3]1.[BH4-].[Na+].[CH3:51][OH:52]>>[OH:33][CH2:32][C:31]1([CH:51]=[O:52])[C:30]([N:34]2[CH2:45][CH2:44][C:43]3[C:42]4[CH2:41][C:40]([CH3:46])([CH3:47])[CH2:39][C:38]=4[S:37][C:36]=3[C:35]2=[O:48])=[CH:29][N:28]=[CH:27][CH:26]1[C:4]1[CH:5]=[C:6]([NH:9][C:10]2[CH:15]=[CH:14][C:13]([N:16]3[CH2:17][CH2:18][N:19]([CH:22]4[CH2:23][O:24][CH2:25]4)[CH2:20][CH2:21]3)=[CH:12][N:11]=2)[C:7](=[O:8])[N:2]([CH3:1])[CH:3]=1Participants
4
Reactant 3
Product 1
Procedure
To a solution of 106j (130 mg, 0.20 mmol) in methanol (5 mL) at 0° C. was added sodium borohydride (22 mg, 0.6 mmol) and stirred for 30 minutes. Then the reaction mixture was quenched with water (1.0 mL) and concentrated. The residue was purified by reverse-phase prep-HPLC to afford 106 (60 mg, 45%) as a yellow solid. LCMS: [M+H]+ 668. 1H NMR (500 MHz, DMSO) δ 8.58 (d, J=2.0, 1H), 8.56 (s, 1H), 8.49 (s, 1H), 8.41 (s, 1H), 7.87 (d, J=2.5, 1H), 7.38-7.36 (m, 2H), 7.24-7.22 (m, 1H), 5.15 (t, J=5.0, 1H), 4.56-4.42 (m, 6H), 4.08-4.04 (m, 2H), 3.60 (s, 3H), 3.43-3.42 (m, 1H), 3.07-2.94 (m, 6H), 2.55-2.53 (m, 4H), 2.39-2.38 (m, 4H), 1.23 (s, 6H)
Workup
- customThen the reaction mixture was quenched with water (1.0 mL)
- concentrationconcentrated
- customThe residue was purified by reverse-phase prep-HPLC
Sources & evidence
- ORD record
- ord-cbf20b4ad840419bae50d52755edb15b
- Source dataset
- uspto-grants-2014_05
- Patent number
- US08716274B2
Reaction notes
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