Sodium hydride → HCID 49779448, compound

HRID 1401586Notes

Reaction equation

HRID 1401586 reaction equation
[H-].[Na+].[CH3:3][N:4]1[CH2:17][CH2:16][C:7]2[NH:8][C:9]3[CH:10]=[CH:11][C:12]([CH3:15])=[CH:13][C:14]=3[C:6]=2[CH2:5]1.[CH:18]([C:21]1([C:24]2[CH:29]=[CH:28][N:27]=[CH:26][CH:25]=2)[CH2:23][O:22]1)([CH3:20])[CH3:19]>CN(C=O)C>[CH3:3][N:4]1[CH2:17][CH2:16][C:7]2[N:8]([CH2:23][C:21]([C:24]3[CH:29]=[CH:28][N:27]=[CH:26][CH:25]=3)([OH:22])[CH:18]([CH3:20])[CH3:19])[C:9]3[CH:10]=[CH:11][C:12]([CH3:15])=[CH:13][C:14]=3[C:6]=2[CH2:5]1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 2092911H-Pyrido[4,3-b]indole, 2,3,4,5-tetrahydro-2,8-dimethyl-HCID 59454960HCID 59454960, compound

Product 1

HCID 49779448HCID 49779448, compoundYield 9.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of sodium hydride (0.192 g, 50-60%) in dry DMF (5 mL) at 0° C. was added 2,3,4,5-tetrahydro-2,8-dimethyl-1H-pyrido[4,3-b]indole (0.3 g). The reaction mixture was stirred at RT for 30 min. To the reaction mixture was added 4-(2-isopropyloxiran-2-yl)pyridine (0.317 g in 2 mL DMF) at RT. After 12 h stirring, the reaction mixture was diluted with ice-water and extracted with EtOAc (3×10 mL). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and evaporated. The crude product was purified by column chromatography (silica gel 100-200 mesh, 5% MeOH:DCM) to obtain pure product (50 mg). 1H NMR (DMSO-d6, oxalate salt) δ (ppm): 8.30 (d, 2H), 7.30 (d, 2H), 7.15 (s, 1H), 7.10 (d, 1H), 6.82 (d, 1H), 4.40 (m, 2H), 4.22 (m, 2H), 3.4 (m, 2H), 3.20 (m, 1H), 2.80 (s, 3H), 2.62 (m, 1H), 2.5 (m, 1H), 2.25 (s, 3H), 1.15 (d, 3H), 0.6 (d, 3H).

Workup

  1. stirringAfter 12 h stirring
  2. extractionextracted with EtOAc (3×10 mL)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customevaporated
  6. customThe crude product was purified by column chromatography (silica gel 100-200 mesh, 5% MeOH:DCM)

Sources & evidence

ORD record
ord-ca7c7c1fc2514ab18df4e3a5a131999d
Source dataset
uspto-grants-2014_12
Patent number
US08907097B2

Reaction notes

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