Sodium borohydride → 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-{6-oxo-8-thia-4,5-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3-trien-5-yl}pyridine

HRID 1021650Notes

Reaction equation

HRID 1021650 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[C:46](=[O:47])[C:45]4[S:44][C:43]5[CH2:42][CH2:41][CH2:40][CH2:39][C:38]=5[C:37]=4[CH:36]=[N:35]3)[C:31]=2[CH:32]=[O:33])=[CH:3]1.[BH4-].[Na+]>CO>[OH:33][CH2:32][C:31]1[C:30]([N:34]2[C:46](=[O:47])[C:45]3[S:44][C:43]4[CH2:42][CH2:41][CH2:40][CH2:39][C:38]=4[C:37]=3[CH:36]=[N:35]2)=[CH:29][N:28]=[CH:27][C: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[CH2:25][O:24][CH2:23]4)[CH2:20][CH2:21]3)=[CH:12][N:11]=2)[C:7](=[O:8])[N:2]([CH3:1])[CH:3]=1

Participants

4

Procedure

To a solution of 116b (46 mg, 0.07 mmol) at 0° C. in methanol (4 mL) was added sodium borohydride (20 mg, 0.7 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 116 (12 mg, 28%) as a yellow solid. LCMS: [M+H]+ 653. 1H NMR (500 MHz, DMSO) δ 8.60 (s, 1H), 8.59 (s, 1H), 8.56 (d, J=2.0, 1H), 8.50 (s, 1H), 8.44 (s, 1H), 7.87 (d, J=3.0, 1H), 7.38-7.36 (m, 2H), 7.24-7.22 (m, 1H), 4.90 (m, 1H), 4.56-4.53 (m, 2H), 4.46-4.44 (m, 4H), 3.59 (s, 3H), 3.44-3.42 (m, 1H), 3.06 (t, J=4.5, 4H), 2.94-2.93 (m, 2H), 2.85-2.84 (m, 2H), 2.38 (t, J=4.0, 4H), 1.89-1.84 (m, 4H)

Workup

  1. customThen the reaction mixture was quenched with water (1.0 mL)
  2. concentrationconcentrated
  3. customThe residue was purified by reverse-phase prep-HPLC

Sources & evidence

ORD record
ord-c1a886b20cfe40a287b543bd293e4049
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

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