Sodium borohydride → 2-{5-[5-((2S,5R)-2,5-Dimethyl-4-oxetan-3-yl-piperazin-1-yl)-pyridin-2-ylamino]-3'-hydroxymethyl-1-methyl-6-oxo-1,6-dihydro-[3,4']bipyridinyl-2'-yl}-2,3,5,6,7,8-hexahydro-4H-2,4b-diaza-fluoren-1-one

HRID 1411638Notes

Reaction equation

HRID 1411638 reaction equation
[CH3:1][CH:2]1[CH2:7][N:6]([CH:8]2[CH2:11][O:10][CH2:9]2)[CH:5]([CH3:12])[CH2:4][N:3]1[C:13]1[CH:14]=[CH:15][C:16]([NH:19][C:20]2[C:25](=[O:26])[N:24]([CH3:27])[CH:23]=[C:22]([C:28]3[C:33]([CH:34]=[O:35])=[C:32]([N:36]4[CH2:48][CH2:47][C:46]5[N:45]6[C:40]([CH2:41][CH2:42][CH2:43][CH2:44]6)=[CH:39][C:38]=5[C:37]4=[O:49])[N:31]=[CH:30][CH:29]=3)[CH:21]=2)=[N:17][CH:18]=1.[BH4-].[Na+]>CO>[CH3:1][C@H:2]1[CH2:7][N:6]([CH:8]2[CH2:11][O:10][CH2:9]2)[C@H:5]([CH3:12])[CH2:4][N:3]1[C:13]1[CH:14]=[CH:15][C:16]([NH:19][C:20]2[C:25](=[O:26])[N:24]([CH3:27])[CH:23]=[C:22]([C:28]3[CH:29]=[CH:30][N:31]=[C:32]([N:36]4[CH2:48][CH2:47][C:46]5[N:45]6[C:40]([CH2:41][CH2:42][CH2:43][CH2:44]6)=[CH:39][C:38]=5[C:37]4=[O:49])[C:33]=3[CH2:34][OH:35])[CH:21]=2)=[N:17][CH:18]=1

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 866842764-(5-(5-(2,5-Dimethyl-4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-3,4,6,7,8,9-hexahydropyrido[3,4-b]indolizin-2(1H)-yl)nicotinaldehyde

Product 1

HCID 866842772-{5-[5-((2S,5R)-2,5-Dimethyl-4-oxetan-3-yl-piperazin-1-yl)-pyridin-2-ylamino]-3'-hydroxymethyl-1-methyl-6-oxo-1,6-dihydro-[3,4']bipyridinyl-2'-yl}-2,3,5,6,7,8-hexahydro-4H-2,4b-diaza-fluoren-1-oneYield 40.1%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 155b (80 mg, 0.12 mmol) at 0° C. in methanol (5 mL) was added sodium borohydride (12 mg, 0.36 mmol). The reaction mixture was stirred for 30 minutes. It was then quenched with water (1 mL) and concentrated under reduced pressure. The residue was purified by reverse-phase prep-HPLC to afford 155 (32 mg, 40%). MS-ESI: [M+H]+ 665.3. 1H NMR (500 MHz, CDCl3) δ 8.68 (d, J=2.0 Hz, 1H), 8.50 (d, J=5.0 Hz, 1H), 8.04 (d, J=2.5 Hz, 1H), 7.88 (s, 1H), 7.86 (d, J=2.5 Hz, 1H), 7.37-7.33 (m, 2H), 6.82 (d, J=9.0 Hz, 1H), 6.32 (s, 1H), 5.02 (d, J=13.0 Hz, 1H), 4.78-4.71 (m, 2H), 4.67-4.61 (m, 3H), 4.44-4.39 (m, 1H), 4.31-4.29 (m, 1H), 3.96-3.91 (m, 1H), 3.86-3.80 (m, 2H), 3.78-3.75 (m, 1H), 3.72 (s, 3H), 3.21-3.19 (m, 1H), 3.01-2.93 (m, 3H), 2.85-2.83 (m, 2H), 2.72 (d, J=10.0 Hz, 2H), 2.49-2.47 (m, 1H), 2.05-2.03 (m, 2H), 1.98-1.97

Workup

  1. customIt was then quenched with water (1 mL)
  2. concentrationconcentrated under reduced pressure
  3. customThe residue was purified by reverse-phase prep-HPLC

Sources & evidence

ORD record
ord-5f9e82f7e8e84327af596b690a4bc0e6
Source dataset
uspto-grants-2014_12
Patent number
US08921353B2

Reaction notes

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