Sodium borohydride → 2-{3'-Hydroxymethyl-1-methyl-5-[5-(4-oxetan-3-yl-piperazin-1-yl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-[3,4']bipyridinyl-2'-yl}-3,4,5,6,7,8-hexahydro-2H-benzo[4,5]thieno[2,3-c]pyridin-1-one

HRID 1021805Notes

Reaction equation

HRID 1021805 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:31]=[CH:30][N:29]=[C:28]([N:32]3[C:44](=[O:45])[C:43]4[S:42][C:41]5[CH2:40][CH2:39][CH2:38][CH2:37][C:36]=5[C:35]=4[CH2:34][CH2:33]3)[C:27]=2[CH:46]=[O:47])=[CH:3]1.[BH4-].[Na+]>CO>[OH:47][CH2:46][C:27]1[C:28]([N:32]2[CH2:33][CH2:34][C:35]3[C:36]4[CH2:37][CH2:38][CH2:39][CH2:40][C:41]=4[S:42][C:43]=3[C:44]2=[O:45])=[N:29][CH:30]=[CH:31][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

Reactant 2

HCID 4311764Sodium borohydrideHCID 866842994-[1-Methyl-5-({5-[4-(oxetan-3-yl)piperazin-1-yl]pyridin-2-yl}amino)-6-oxo-1,6-dihydropyridin-3-yl]-2-{6-oxo-8-thia-5-azatricyclo[7.4.0.02,7]-trideca-1(9),2(7)-dien-5-yl}pyridine-3-carbaldehyde

Product 1

HCID 715572752-{3'-Hydroxymethyl-1-methyl-5-[5-(4-oxetan-3-yl-piperazin-1-yl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-[3,4']bipyridinyl-2'-yl}-3,4,5,6,7,8-hexahydro-2H-benzo[4,5]thieno[2,3-c]pyridin-1-oneYield 30.6%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 169b (45 mg, 0.070 mmol), NaBH4 (8 mg, 0.21) and methanol (5 mL) was stirred at room temperature for 1 h. The reaction mixture was quenched with water (5 mL) and concentrated under reduced pressure. The residue was extracted with dichloromethane (2×10 mL). The combined dichloromethane extract was concentrated under reduced pressure. The residue was purified with reverse-phase prep-HPLC to afford 169 (14 mg, 30%). LCMS-ESI: [M+H]+ 654. 1H NMR (500 MHz, DMSO-d6) δ 8.62 (s, 1H), 8.50 (d, J=2.0 Hz, 1H), 8.43 (s, 1H), 7.86 (d, J=4.5 Hz, 1H), 7.45 (d, J=2.5 Hz, 1H), 7.39-7.34 (m, 2H), 7.25-7.22 (m, 1H), 4.95-4.93 (m, 1H), 4.57-4.55 (m, 2H), 4.47-4.41 (m, 4H), 4.19-4.17 (m, 1H), 3.82-3.80 (m, 1H), 3.60 (s, 3H), 3.45-3.43 (m, 1H), 3.32-3.30 (m, 1H), 3.09-3.07 (m, 4H), 3.01-2.90 (m, 1H), 2.89-2.88 (m, 1H), 2.80-2.79 (m, 2H), 2.51-2.50 (m, 1H), 2.40-2.38 (m, 4H), 1.83-1.80 (m, 4H).

Workup

  1. customThe reaction mixture was quenched with water (5 mL)
  2. concentrationconcentrated under reduced pressure
  3. extractionThe residue was extracted with dichloromethane (2×10 mL)
  4. extractionThe combined dichloromethane extract
  5. concentrationwas concentrated under reduced pressure
  6. customThe residue was purified with reverse-phase prep-HPLC

Sources & evidence

ORD record
ord-b95dc4d113fe4d89bea56df357477d7c
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

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