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

HRID 1411776Notes

Reaction equation

HRID 1411776 reaction equation
C([O:4][CH2:5][C:6]1[C:7]([N:37]2[CH2:49][CH2:48][N:40]3[C:41]4[CH2:42][CH2:43][CH2:44][CH2:45][C:46]=4[CH:47]=[C:39]3[C:38]2=[O:50])=[N:8][CH:9]=[CH:10][C:11]=1[C:12]1[N:13]=[C:14]([NH:20][C:21]2[CH:22]=[N:23][C:24]([N:27]3[CH2:32][CH2:31][N:30]([CH:33]4[CH2:36][O:35][CH2:34]4)[CH2:29][CH2:28]3)=[CH:25][CH:26]=2)[C:15](=[O:19])[N:16]([CH3:18])[CH:17]=1)(=O)C.[OH-].[Li+].O>C1COCC1.C(O)(C)C>[OH:4][CH2:5][C:6]1[C:7]([N:37]2[CH2:49][CH2:48][N:40]3[C:41]4[CH2:42][CH2:43][CH2:44][CH2:45][C:46]=4[CH:47]=[C:39]3[C:38]2=[O:50])=[N:8][CH:9]=[CH:10][C:11]=1[C:12]1[N:13]=[C:14]([NH:20][C:21]2[CH:22]=[N:23][C:24]([N:27]3[CH2:28][CH2:29][N:30]([CH:33]4[CH2:36][O:35][CH2:34]4)[CH2:31][CH2:32]3)=[CH:25][CH:26]=2)[C:15](=[O:19])[N:16]([CH3:18])[CH:17]=1

Participants

6

Reactant 3

HCID 962WaterHCID 3939Lithium HydroxideHCID 86684366(4-(4-Methyl-6-(6-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-3-ylamino)-5-oxo-4,5-dihydropyrazin-2-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 715576002-[3-(Hydroxymethyl)-4-[4-methyl-6-[[6-[4-(oxetan-3-yl)piperazin-1-yl]-3-pyridyl]amino]-5-oxo-pyrazin-2-yl]-2-pyridyl]-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1-oneYield 30.8%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 197f (200 mg, 0.30 mmol) and lithium hydroxide (70 mg, 3.0 mmol) in THF (9 mL), i-propanol (6 mL), and water (1 mL) was stirred at room temperature for 0.5 h. The mixture was concentrated under reduced pressure and diluted with water (4 mL). It was then extracted with dichloromethane (2×10 mL) and the combined dichloromethane extract was concentrated under reduced pressure. The residue was purified with reverse-phase prep-HPLC to afford 197 (59 mg, 30%) as yellow solid. MS-ESI: [M+H]+ 638. 1H NMR (500 MHz, DMSO-d6) δ 9.30 (s, 1H), 8.70 (d, J=2.5 Hz, 1H), 8.49 (d, J=5.5 Hz, 1H), 8.14-8.11 (m, 1H), 7.59 (s, 1H), 7.55 (d, J=5.0 Hz, 1H), 6.82 (d, J=9.5 Hz, 1H), 6.58 (s, 1H), 4.93 (t, J=5.5 Hz, 1H), 4.60-4.54 (m, 3H), 4.48-4.42 (m, 3H), 4.26-4.08 (m, 3H), 3.86 (d, J=12.0 Hz, 1H), 3.54 (s, 3H), 3.44-3.40 (m, overlap, 5H), 2.66-2.53 (m, 2H), 2.46-2.47 (m, 2H), 2.35-2.33 (m, 4H), 1.80-1.68 (m, 4H).

Workup

  1. concentrationThe mixture was concentrated under reduced pressure
  2. additiondiluted with water (4 mL)
  3. extractionIt was then 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-81050c03f7b240889966e9313bb957fd
Source dataset
uspto-grants-2014_12
Patent number
US08921353B2

Reaction notes

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