Lithium Hydroxide → 2-[3-(hydroxymethyl)-4-[1-methyl-5-[[5-[(2S)-2-methyl-4-(oxetan-3-yl)piperazin-1-yl]pyrazin-2-yl]amino]-6-oxo-3-pyridyl]-2-pyridyl]-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1-one

HRID 1021994Notes

Reaction equation

HRID 1021994 reaction equation
C([O:4][CH2:5][C:6]1[C:7]([N:38]2[CH2:50][CH2:49][N:41]3[C:42]4[CH2:43][CH2:44][CH2:45][CH2:46][C:47]=4[CH:48]=[C:40]3[C:39]2=[O:51])=[N:8][CH:9]=[CH:10][C:11]=1[C:12]1[CH:17]=[C:16]([NH:18][C:19]2[CH:24]=[N:23][C:22]([N:25]3[CH2:30][CH2:29][N:28]([CH:31]4[CH2:34][O:33][CH2:32]4)[CH2:27][C@@H:26]3[CH3:35])=[CH:21][N:20]=2)[C:15](=[O:36])[N:14]([CH3:37])[CH:13]=1)(=O)C.[OH-].[Li+]>C(O)(C)C.C1COCC1.O>[OH:4][CH2:5][C:6]1[C:7]([N:38]2[CH2:50][CH2:49][N:41]3[C:42]4[CH2:43][CH2:44][CH2:45][CH2:46][C:47]=4[CH:48]=[C:40]3[C:39]2=[O:51])=[N:8][CH:9]=[CH:10][C:11]=1[C:12]1[CH:17]=[C:16]([NH:18][C:19]2[CH:24]=[N:23][C:22]([N:25]3[CH2:30][CH2:29][N:28]([CH:31]4[CH2:32][O:33][CH2:34]4)[CH2:27][C@@H:26]3[CH3:35])=[CH:21][N:20]=2)[C:15](=[O:36])[N:14]([CH3:37])[CH:13]=1

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 86684421(S)-(4-(1-Methyl-5-(5-(2-methyl-4-(oxetan-3-yl)piperazin-1-yl)pyrazin-2-yl-amino)-6-oxo-1,6-dihydropyridin-3-yl)-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)pyridin-3-yl)methyl Acetate

Product 1

HCID 866844232-[3-(hydroxymethyl)-4-[1-methyl-5-[[5-[(2S)-2-methyl-4-(oxetan-3-yl)piperazin-1-yl]pyrazin-2-yl]amino]-6-oxo-3-pyridyl]-2-pyridyl]-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1-oneYield 21.9%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 22597222Tetrahydrofuran 2-propanolSolvent

Conditions

Temperature
35 °C

Procedure

A mixture of 228a (50 mg, 0.070 mmol) and lithium hydroxide (43 mg, 1.8 mmol) in i-propanol/THF (1:1, 4 mL) and water (1 mL) was stirred at 35° C. for 30 mins. The reaction mixture was concentrated under reduced pressure and the residue was purified by reverse-phase prep-HPLC to afford 228 (10 mg, 21%). MS-ESI: [M+H]+ 652.3. 1H NMR (500 MHz, DMSO-d6) δ 8.61 (s, 1H), 8.48 (d, J=4.5 Hz, 1H), 8.39 (s, 1H), 8.34 (s, 1H), 7.84 (s, 1H), 7.48 (s, 1H), 7.34 (d, J=5.0 Hz, 1H), 6.58 (s, 1H), 4.94 (bs, 1H), 4.56-4.55 (m, 2H), 4.49-4.47 (m, 1H), 4.42-4.36 (m, overlap, 4H) 4.25-4.17 (m, 2H), 4.13-4.10 (m, 1H), 3.86-3.76 (m, 2H), 3.60 (s, 3H), 3.39-3.37 (m, 1H), 3.01-2.96 (m, 1H), 2.78-2.76 (m, 1H), 2.62-2.57 (m, overlap, 3H), 2.50-2.47 (m, 2H), 2.10-2.07 (m, 1H), 1.94-1.90 (m, 1H), 1.80-1.78 (m, 2H), 1.70-1.69 (m, 2H), 1.12 (d, J=6.5 Hz, 3H).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was purified by reverse-phase prep-HPLC

Sources & evidence

ORD record
ord-7e9badcbb10547e28670ab18af0cff95
Source dataset
uspto-grants-2014_05
Patent number
US08716274B2

Reaction notes

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