1,2-Ethanediamine, N1,N1,N2-trimethyl- → 6-[4-[N-(2-Dimethylaminoethyl)-N-methylaminocarbonyloxy]-2-methoxyphenyl]-5-(2-methoxyphenylaminomethyl)-2,2,4-trimethyl-1,2-dihydroquinoline

HRID 1968476Notes

Reaction equation

HRID 1968476 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([CH2:21][N:22]([C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=3[O:46][CH3:47])C(OCC3C4C=CC=CC=4C4C3=CC=CC=4)=O)=[C:10]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13]([CH3:19])([CH3:18])[CH:12]=[C:11]3[CH3:20])=[C:4]([O:48][CH3:49])[CH:3]=1.[C:50](N1C=CN=C1)(N1C=CN=C1)=[O:51].[CH3:62][N:63]([CH3:68])[CH2:64][CH2:65][NH:66][CH3:67]>CN(C)C1C=CN=CC=1.O1CCCC1>[CH3:62][N:63]([CH3:68])[CH2:64][CH2:65][N:66]([C:50]([O:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([CH2:21][NH:22][C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=3[O:46][CH3:47])=[C:10]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13]([CH3:19])([CH3:18])[CH:12]=[C:11]3[CH3:20])=[C:4]([O:48][CH3:49])[CH:3]=1)=[O:51])[CH3:67]

Participants

6

Reactant 3

HCID 673381,2-Ethanediamine, N1,N1,N2-trimethyl-HCID 682631,1'-CarbonyldiimidazoleHCID 669929016-(4-Hydroxy-2-methoxyphenyl)-5-[N-(2-methoxyphenyl)-N-(9-fluorenylmethoxycarbonyl)aminomethyl]-2,2,4-trimethyl-1,2-dihydroquinoline

Product 1

HCID 579906306-[4-[N-(2-Dimethylaminoethyl)-N-methylaminocarbonyloxy]-2-methoxyphenyl]-5-(2-methoxyphenylaminomethyl)-2,2,4-trimethyl-1,2-dihydroquinolineYield 47%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 6-(4-hydroxy-2-methoxyphenyl)-5-[N-(2-methoxyphenyl)-N-(9-fluorenylmethoxycarbonyl)amino methyl]-2,2,4-trimethyl-1,2-dihydroquinoline (Reference Compound No. 6, 25.0 mg, 0.0383 mmol), 1,1′-carbonyldiimidazole (62.0 mg, 0.382 mmol) and 4-dimethylaminopyridine (0.5 mg, 0.004 mmol) was dissolved in anhydrous tetrahydrofuran (1 mL), and then the mixture was stirred at room temperature for 4.5 hours. N,N,N′-Trimethylethylenediamine (39.2 mg, 0.383 mmol) was added thereto, the mixture was stirred at 60° C. for 2 hours. The reaction mixture was purified by silica gel column chromatography (hexane-ethyl acetate). The obtained colorless amorphous product was dissolved in N, N-dimethylformamide (1 mL) and piperidine (50 μL) was added thereto. After the reaction mixture was stirred at room temperature for 15 minutes, the mixture was diluted with ethyl acetate (20 mL). The mixture was washed with water (15 mL) and saturated brine (15 mL) successively, dried over anhydrous magnesium sulfate, and then the solvent was removed under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give the titled compound (9.9 mg) as a colorless amorphous product. (Yield 47%)

Workup

  1. stirringthe mixture was stirred at 60° C. for 2 hours
  2. customThe reaction mixture was purified by silica gel column chromatography (hexane-ethyl acetate)
  3. dissolutionThe obtained colorless amorphous product was dissolved in N, N-dimethylformamide (1 mL)
  4. additionpiperidine (50 μL) was added
  5. stirringAfter the reaction mixture was stirred at room temperature for 15 minutes
  6. additionthe mixture was diluted with ethyl acetate (20 mL)
  7. washThe mixture was washed with water (15 mL) and saturated brine (15 mL) successively
  8. dry with materialdried over anhydrous magnesium sulfate
  9. customthe solvent was removed under reduced pressure
  10. customThe obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate)

Sources & evidence

ORD record
ord-9ab9df1221a844f58fab71c784915bca
Source dataset
uspto-grants-2013_04
Patent number
US08426406B2

Reaction notes

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