Sodium hydride → 3-(4-fluorophenyl)-1-[2-(piperidin-1-yl)ethoxy]-2-(pyridin-4-yl)-1H-pyrrolo[3,2-b]pyridine

HRID 429196Notes

Reaction equation

HRID 429196 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3=[N:13][CH:14]=[CH:15][CH:16]=[C:11]3[N:10]([OH:17])[C:9]=2[C:18]2[CH:23]=[CH:22][N:21]=[CH:20][CH:19]=2)=[CH:4][CH:3]=1.Cl.Cl[CH2:26][CH2:27][N:28]1[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]1.[H-].[Na+]>CN(C)C=O>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[C:12]3=[N:13][CH:14]=[CH:15][CH:16]=[C:11]3[N:10]([O:17][CH2:26][CH2:27][N:28]3[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]3)[C:9]=2[C:18]2[CH:19]=[CH:20][N:21]=[CH:22][CH:23]=2)=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 74826Piperidine, 1-(2-chloroethyl)-, hydrochlorideHCID 52882383-(4-Fluorophenyl)-1-Hydroxy-2-(Pyridin-4-Yl)-1h-Pyrrolo(3,2-B)Pyridine

Product 1

HCID 129684983-(4-fluorophenyl)-1-[2-(piperidin-1-yl)ethoxy]-2-(pyridin-4-yl)-1H-pyrrolo[3,2-b]pyridineYield 67.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 3-(4-fluorophenyl)-1-hydroxy-2-(pyridin-4-yl)-1H-pyrrolo[3,2-b]pyridine (0.20 g, 0.65 mmol) and 2-chloroethylpiperidine hydrochloride (0.24 g, 1.31 mmol) in dimethylformamide (5 ml) was added sodium hydride (100 mg, 6.56 mmol, 60% in oil). The reaction mixture was stirred overnight and quenched with water (2 ml). The pH was adjusted to pH=11-12 by the addition of saturated sodium carbonate solution and the product was extracted into ethyl acetate. The combined extracts were dried over anhydrous MgSO4 and concentrated in vacuo to give an oil. Purified by flash column chromatography (50%-80% ethyl acetate/hexanes, followed by 95/5% methylene chloride/methanol gradient) gave 3-(4-fluorophenyl)-1-[2-(piperidin-1-yl)ethoxy]-2-(pyridin-4-yl)-1H-pyrrolo[3,2-b]pyridine as a yellow solid (182 mg).

Workup

  1. customquenched with water (2 ml)
  2. additionThe pH was adjusted to pH=11-12 by the addition of saturated sodium carbonate solution
  3. extractionthe product was extracted into ethyl acetate
  4. dry with materialThe combined extracts were dried over anhydrous MgSO4
  5. concentrationconcentrated in vacuo
  6. customto give an oil
  7. customPurified by flash column chromatography (50%-80% ethyl acetate/hexanes, followed by 95/5% methylene chloride/methanol gradient)

Sources & evidence

ORD record
ord-38aba304886f4247832d16fea35d2f89
Source dataset
uspto-grants-2001_11
Patent number
US06316464B1

Reaction notes

Loading…