Sodium hydride → HCID 58459895, compound

HRID 535870Notes

Reaction equation

HRID 535870 reaction equation
[N:1]1[C:6]2[NH:7][C:8]3[CH2:16][CH:15]4[N:11]([CH2:12][CH2:13][CH2:14]4)[CH2:10][C:9]=3[C:5]=2[CH:4]=[CH:3][CH:2]=1.[H-].[Na+].Cl[CH2:20][C:21]([N:23]1[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1)=[O:22]>CN(C=O)C>[N:23]1([C:21](=[O:22])[CH2:20][N:7]2[C:8]3[CH2:16][CH:15]4[N:11]([CH2:12][CH2:13][CH2:14]4)[CH2:10][C:9]=3[C:5]3[CH:4]=[CH:3][CH:2]=[N:1][C:6]2=3)[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 2223122-Chloro-1-piperidine-1-yl-ethanoneHCID 670365602,3,4,9,10,10a-hexahydro-1H-3a,8,9-triaza-cyclopenta[b]fluorene

Product 1

HCID 58459895HCID 58459895, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent3×

Procedure

To a solution of 7,8,9,9a,10,11-hexahydro-5H-pyrido[3′,2′:4,5]pyrrolo[3,2-f]indolizine (70 mg, 0.32 mmol) in DMF (1 mL) was added a suspension of NaH (40.0 mg, 0.986 mmol) in DMF (1 mL). After stirring for 5 min at RT, a solution of 2-chloro-1-(piperidin-1-yl)ethanone (159 mg, 0.986 mmol) in DMF (1 mL) was added dropwise into the reaction mixture and stiffing continued for another 3 h. The progress of reaction was monitored by TLC and NMR. The reaction mixture was diluted with ice-water (20 mL) and extracted with EtOAc (3×25 mL). The organic layer was washed with water (3×20 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford crude material, which was purified by silica gel flash chromatography (10% MeOH-DCM) to yield 1-(piperidin-1-yl)-2-(8,9,9a,10-tetrahydro-5H-pyrido[3′,2′:4,5]pyrrolo[3,2-f]indolizin-11(7H)-yl)ethanone;

Workup

  1. waitstiffing continued for another 3 h
  2. customThe progress of reaction
  3. extractionextracted with EtOAc (3×25 mL)
  4. washThe organic layer was washed with water (3×20 mL)
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customto afford crude material, which
  8. customwas purified by silica gel flash chromatography (10% MeOH-DCM)

Sources & evidence

ORD record
ord-82c93003d63f494ebfd5d4ece434e888
Source dataset
uspto-grants-2014_10
Patent number
US08859561B2

Reaction notes

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