Potassium Carbonate → 1-(2-Dimethylamino-ethyl)-6-methyl-2-oxo-4-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-1,2-dihydro-quinolin-3-carbonitrile

HRID 970538Notes

Reaction equation

HRID 970538 reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:7](=[O:12])[C:6]([C:13]#[N:14])=[C:5]2[N:15]1[CH2:20][CH2:19][N:18]([C:21]([C:23]2[S:24][CH:25]=[CH:26][CH:27]=2)=[O:22])[CH2:17][CH2:16]1.Cl.[CH3:29][N:30]([CH3:34])[CH2:31][CH2:32]Cl.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C>[CH3:29][N:30]([CH3:34])[CH2:31][CH2:32][N:8]1[C:9]2[C:4](=[CH:3][C:2]([CH3:1])=[CH:11][CH:10]=2)[C:5]([N:15]2[CH2:16][CH2:17][N:18]([C:21]([C:23]3[S:24][CH:25]=[CH:26][CH:27]=3)=[O:22])[CH2:19][CH2:20]2)=[C:6]([C:13]#[N:14])[C:7]1=[O:12]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 11636816N,N-Dimethylaminoethyl chloride hydrochlorideHCID 210819836-Methyl-2-oxo-4-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-1,2-dihydro-quinolin-3-carbonitrile

Product 1

HCID 210818711-(2-Dimethylamino-ethyl)-6-methyl-2-oxo-4-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-1,2-dihydro-quinolin-3-carbonitrileYield 24%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of Compound 107 (800 mg, 2.11 mmol), 2-dimethylamino ethyl chloride hydrochloride (1.52 g, 10.55 mmol), and potassium carbonate (2.91 g, 21.10 mmol) in DMF was heated overnight at 90° C. The solution was cooled and poured into ice water. The solids formed were filtered, washed by water, and dried. The crude product was purified by flash chromatography eluting with 0-10% methanol in ethylacetate gradient to yield 210 mg (24%) of pale yellow solids. M.P. 132° C. 1H NMR (DMSO-d6): δ 2.24 (s, 6H), 2.40 (s, 3H), 2.44 (m, 2H), 3.63 (m, 4H), 3.97 (m, 4H), 4.29 (m, 2H), 7.17 (dd, J=3.4, 4.8 Hz, 1H), 7.49 (m, 2H), 7.57 (m, 1H), 7.69 (s, 1H), 7.80 (d, J=5.2 Hz, 1H). EIMS m/z 450 (M+1). Anal. (C24H27N5O2S) C,H, N.

Workup

  1. temperatureThe solution was cooled
  2. customThe solids formed
  3. filtrationwere filtered
  4. washwashed by water
  5. customdried
  6. customThe crude product was purified by flash chromatography
  7. washeluting with 0-10% methanol in ethylacetate gradient

Sources & evidence

ORD record
ord-97a9e327513d4c87b6a1dfc682242ede
Source dataset
uspto-grants-2007_12
Patent number
US07312220B2

Reaction notes

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