Sodium borohydride → 3-[3'-Hydroxymethyl-1-methyl-6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydro-[3,4]bipyridinyl-2'-yl]-6,7,8,9-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyridazin-4-one

HRID 1411703Notes

Reaction equation

HRID 1411703 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]([NH:9][C:10]2[CH:15]=[CH:14][N:13]=[CH:12][N:11]=2)=[CH:5][C:4]([C:16]2[CH:21]=[CH:20][N:19]=[C:18]([N:22]3[C:34](=[O:35])[C:33]4[S:32][C:31]5[CH2:30][CH2:29][CH2:28][CH2:27][C:26]=5[C:25]=4[CH:24]=[N:23]3)[C:17]=2[CH:36]=[O:37])=[CH:3]1.[BH4-].[Na+]>CO>[OH:37][CH2:36][C:17]1[C:18]([N:22]2[C:34](=[O:35])[C:33]3[S:32][C:31]4[CH2:30][CH2:29][CH2:28][CH2:27][C:26]=4[C:25]=3[CH:24]=[N:23]2)=[N:19][CH:20]=[CH:21][C:16]=1[C:4]1[CH:5]=[C:6]([NH:9][C:10]2[CH:15]=[CH:14][N:13]=[CH:12][N:11]=2)[C:7](=[O:8])[N:2]([CH3:1])[CH:3]=1

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 866843254-{1-Methyl-6-oxo-5-[(pyrimidin-4-yl)amino]-1,6-dihydropyridin-3-yl}-2-{6-oxo-8-thia-4,5-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3-trien-5-yl}pyridine-3-carbaldehyde

Product 1

HCID 866843263-[3'-Hydroxymethyl-1-methyl-6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydro-[3,4]bipyridinyl-2'-yl]-6,7,8,9-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyridazin-4-oneYield 43.3%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

At room temperature, to a solution of 182a (140 mg, 0.27 mmol) in methanol (5 mL) was added sodium borohydride (31 mg, 0.82 mmol). The reaction mixture was stirred for 20 minutes and quenched with water (1 mL). It was then concentrated under reduced pressure and the resulting residue was purified by silica-gel column chromatography eluting with 60:1 dichloromethane/methanol to afford 182 as a white solid (60 mg, 43%). MS-ESI: [M+H]+ 514.2. 1H NMR (500 MHz, CDCl3) δ 8.89 (d, J=2.5 Hz, 1H), 8.82 (s, 1H), 8.70 (d, J=5.5 Hz, 1H), 8.36 (d, J=6.5 Hz, 1H), 8.31 (s, 1H), 8.20 (s, 1H), 7.89 (d, J=2.0 Hz, 1H), 7.55 (d, J=5.0 Hz, 1H), 6.80 (d, J=9.5 Hz, 1H), 4.44-4.42 (m, 3H), 3.75 (s, 3H), 2.99-2.98 (m, 2H), 2.88-2.87 (m, 2H), 2.03-1.98 (m, 4H).

Workup

  1. customquenched with water (1 mL)
  2. concentrationIt was then concentrated under reduced pressure
  3. customthe resulting residue was purified by silica-gel column chromatography
  4. washeluting with 60:1 dichloromethane/methanol

Sources & evidence

ORD record
ord-36de621935bb402e92419aaeed8bc5ac
Source dataset
uspto-grants-2014_12
Patent number
US08921353B2

Reaction notes

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