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

HRID 592998Notes

Reaction equation

HRID 592998 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]([CH3:28])[CH:25]([CH3:27])[CH2:26][N:21]3[N:20]=2)[C:15](=[O:30])[N:14]([CH3:31])[CH:13]=1)(=O)C.[OH-].[Li+]>C1COCC1.C(O)(C)C.O>[CH3:28][N:24]1[CH:25]([CH3:27])[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

Participants

4

Reactant 2

HCID 3939Lithium HydroxideHCID 86684481(4-(5-(5,6-Dimethyl-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 866844822-[4-[5-[(5,6-dimethyl-6,7-dihydro-4H-pyrazolo[1,5-a]pyrazin-2-yl)amino]-1-methyl-6-oxo-3-pyridyl]-3-(hydroxymethyl)-2-pyridyl]-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1-oneYield 57.2%

Reagents, catalysts & solvents 1

HCID 22722550Tetrahydrofuran water isopropanolSolvent

Conditions

Temperature
30 °C

Procedure

To a solution of 250f (75 mg, 0.123 mmol) in THF/i-propanol/water (4/2/2 mL) was added lithium hydroxide (15 mg, 0.62 mmol). The mixture was stirred at 30° C. for 1 h. After the reaction was complete, the mixture was evaporated under reduced pressure and the residue was purified by reverse-phase prep-HPLC to afford 250 as a white solid (40 mg, 57%). MS-ESI: [M+H]+ 569.3. 1H NMR (500 MHz, CDCl3) δ 8.49 (d, J=5.0 Hz, 1H), 7.96 (bs, 1H), 7.73 (d, J=2.0 Hz, 1H), 7.43 (s, 1H), 7.36 (d, J=5.0 Hz, 1H), 6.91 (s, 1H), 5.71 (s, 1H), 5.03 (t, J=3.5 Hz, 1H), 4.65-4.62 (m, 1H), 4.52-4.50 (m, 1H), 4.35-4.33 (m, 1H), 4.17-4.05 (m, 3H), 3.91-3.88 (m, 2H), 3.73-3.71 (m, 1H), 3.71 (s, 3H), 3.55-3.52 (m, 1H), 2.90-2.87 (m, 1H), 2.64-2.58 (m, 4H), 2.43 (s, 3H), 1.93-1.90 (m, 2H), 1.81-1.80 (m, 2H), 1.24 (d, J=6.5 Hz, 3H).

Workup

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

Sources & evidence

ORD record
ord-4e0561963fcd40be87b12db4bf23d65a
Source dataset
uspto-grants-2016_01
Patent number
US09238655B2

Reaction notes

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