Sodium borohydride → 2-(3-(Hydroxymethyl)-2-(1-methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)pyridin-4-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one

HRID 592532Notes

Reaction equation

HRID 592532 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[N:33]=[CH:32][CH:31]=[C:30]([N:34]3[CH2:46][CH2:45][N:37]4[C:38]5[CH2:39][CH2:40][CH2:41][CH2:42][C:43]=5[CH:44]=[C:36]4[C:35]3=[O:47])[C:27]=2[CH:28]=[O:29])=[CH:3]1.[BH4-].[Na+]>CO>[OH:29][CH2:28][C:27]1[C:26]([C:4]2[CH:5]=[C:6]([NH:9][C:10]3[CH:15]=[CH:14][C:13]([N:16]4[CH2:17][CH2:18][N:19]([CH:22]5[CH2:23][O:24][CH2:25]5)[CH2:20][CH2:21]4)=[CH:12][N:11]=3)[C:7](=[O:8])[N:2]([CH3:1])[CH:3]=2)=[N:33][CH:32]=[CH:31][C:30]=1[N:34]1[CH2:46][CH2:45][N:37]2[C:38]3[CH2:39][CH2:40][CH2:41][CH2:42][C:43]=3[CH:44]=[C:36]2[C:35]1=[O:47]

Participants

4

Reactant 2

HCID 4311764Sodium borohydrideHCID 866841742-(1-Methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)-4-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehyde

Product 1

HCID 715588552-(3-(Hydroxymethyl)-2-(1-methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)pyridin-4-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-oneYield 16.5%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To the solution of 104c (360 mg, 0.6 mmol) in methanol (50 mL) was added sodium borohydride (70 mg, 1.8 mmol) at 0° C. and stirred for another 30 minutes. Then the reaction mixture was quenched with water (2 mL) and concentrated. The residue was purified with reverse-phase prep-HPLC to afford 104 (63 mg, 16%) as an off-white solid. LCMS: [M+H]+ 637. 1H NMR (500 MHz, DMSO) δ 8.70 (d, J=3.0, 1H), 8.65 (d, J=5.5, 1H), 8.34 (s, 1H), 7.85 (d, J=3.0, 1H), 7.60 (d, J=2.5, 1H), 7.36-7.37 (m, 2H), 7.22-7.23 (m, 1H), 6.56 (s, 1H), 5.12 (t, J=5.5, 1H), 4.55-4.56 (m, 2H), 4.43-4.45 (m, 4H), 4.14-4.16 (m, 3H), 3.93-3.95 (m, 1H), 3.60 (s, 3H), 3.43-3.44 (m, 1H), 3.05-3.08 (m, 4H), 2.61-2.63 (m, 2H), 2.46-2.47 (m, 2H), 2.36-2.39 (m, 4H), 1.68-1.78 (m, 4H).

Workup

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

Sources & evidence

ORD record
ord-a5937c902a104e2cb7c0555b015cd906
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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