Water → 2-(4-(5-(5-ethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-3-(hydroxymethyl)pyridin-2-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one

HRID 592756Notes

Reaction equation

HRID 592756 reaction equation
C([O:4][CH2:5][C:6]1[C:7]([N:32]2[CH2:44][CH2:43][N:35]3[C:36]4[CH2:37][CH2:38][CH2:39][CH2:40][C:41]=4[CH:42]=[C:34]3[C:33]2=[O:45])=[N:8][CH:9]=[CH:10][C:11]=1[C:12]1[CH:17]=[C:16]([NH:18][C:19]2[CH:29]=[C:22]3[CH2:23][N:24]([CH2:27][CH3:28])[CH2:25][CH2:26][N:21]3[N:20]=2)[C:15](=[O:30])[N:14]([CH3:31])[CH:13]=1)(=O)C.O.[OH-].[Li+]>CC(O)C.O1CCCC1>[CH2:27]([N:24]1[CH2:25][CH2:26][N:21]2[N:20]=[C:19]([NH:18][C:16]3[C:15](=[O:30])[N:14]([CH3:31])[CH:13]=[C:12]([C:11]4[CH:10]=[CH:9][N:8]=[C:7]([N:32]5[CH2:44][CH2:43][N:35]6[C:36]7[CH2:37][CH2:38][CH2:39][CH2:40][C:41]=7[CH:42]=[C:34]6[C:33]5=[O:45])[C:6]=4[CH2:5][OH:4])[CH:17]=3)[CH:29]=[C:22]2[CH2:23]1)[CH3:28]

Participants

6

Reactant 3

HCID 962WaterHCID 3939Lithium HydroxideHCID 86684315(4-(5-(5-Ethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-1-methyl-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 866843162-(4-(5-(5-ethyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-3-(hydroxymethyl)pyridin-2-yl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-oneYield 28.4%

Reagents, catalysts & solvents 2

HCID 3776IsopropanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 177a (300 mg, 0.49 mmol) in propan-2-ol (4 mL), tetrahydrofuran (4 mL), and water (1 mL) was added lithium hydroxide (35 mg, 1.47 mmol). The mixture was stirred at room temperature for 0.5 h. It was evaporated and the residue was purified by reverse-phase prep-HPLC to afford 177 (79 mg, 28%) as a white solid. MS-ESI: [M+H]+ 569. 1H NMR (500 MHz, CDCl3) δ 8.46 (d, J=5.5 Hz, 1H), 7.92 (d, J=2.0 Hz, 1H), 7.70 (d, J=2.0 Hz, 1H), 7.39 (s, 1H), 7.33 (d, J=5.5 Hz, 1H), 6.88 (s, 1H), 5.69 (s, 1H), 4.99-4.97 (m, 1H), 4.61-4.60 (m, 1H), 4.48-4.46 (m, 1H), 4.33-4.31 (m, 1H), 4.14-4.06 (m, 4H), 3.87-3.85 (m, 1H), 3.69 (s, 3H), 3.62 (d, J=5.5 Hz, 2H), 2.91 (d, J=5.0 Hz, 2H), 2.63-2.55 (m, 6H), 1.91-1.87 (m, 2H), 1.79-1.78 (m, 2H), 1.17 (t, J=7.5 Hz, 3H).

Workup

  1. customIt was evaporated
  2. customthe residue was purified by reverse-phase prep-HPLC

Sources & evidence

ORD record
ord-0303088389114a9b8c0e3dfa539b1e21
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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