Triethylamine → N-[(1S)-2-(benzyloxy)-1-({[tert-butyl(dimethyl)silyl]oxy}methyl)ethyl]-3-nitroquinolin-4-amine

HRID 221572Notes

Reaction equation

HRID 221572 reaction equation
[CH2:1]([O:8][CH2:9][C@H:10]([NH2:20])[CH2:11][O:12][Si:13]([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.Cl[C:29]1[C:38]2[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=2)[N:32]=[CH:31][C:30]=1[N+:39]([O-:41])=[O:40]>C(Cl)Cl>[CH2:1]([O:8][CH2:9][C@H:10]([NH:20][C:29]1[C:38]2[C:33](=[CH:34][CH:35]=[CH:36][CH:37]=2)[N:32]=[CH:31][C:30]=1[N+:39]([O-:41])=[O:40])[CH2:11][O:12][Si:13]([C:16]([CH3:17])([CH3:19])[CH3:18])([CH3:14])[CH3:15])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 112758084-Chloro-3-nitroquinolineHCID 67157024(2S)-1-(benzyloxy)-3-{[tert-butyl(dimethyl)silyl]oxy}propan-2-amine

Product 1

HCID 67157123N-[(1S)-2-(benzyloxy)-1-({[tert-butyl(dimethyl)silyl]oxy}methyl)ethyl]-3-nitroquinolin-4-amineYield 73.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(2S)-1-(Benzyloxy)-3-{[tert-butyl(dimethyl)silyl]oxy}propan-2-amine (1.55 g, 5.25 mmol) was dissolved in 60 mL of dry CH2Cl2. Triethylamine (1.46 mL, 10.5 mmol) and 4-chloro-3-nitroquinoline (1.09 g, 5.25 mmol) were then added and the reaction was stirred under N2 for 2 days. The reaction mixture was then concentrated and the resulting material was partitioned between 50 mL of CH2Cl2 and 50 mL of saturated NaHCO3 solution. The layers were separated and the organic portion was washed with H2O and brine. The organic portion was dried over Na2SO4, filtered and concentrated under reduced pressure. Chromatography (SiO2, 0-10% ethyl acetate/CH2Cl2) gave 1.81 g of N-[(1S)-2-(benzyloxy)-1-({[tert-butyl(dimethyl)silyl]oxy}methyl)ethyl]-3-nitroquinolin-4-amine as a yellow solid.

Workup

  1. concentrationThe reaction mixture was then concentrated
  2. customthe resulting material was partitioned between 50 mL of CH2Cl2 and 50 mL of saturated NaHCO3 solution
  3. customThe layers were separated
  4. washthe organic portion was washed with H2O and brine
  5. dry with materialThe organic portion was dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-df8b318cdd9d49eeab4a382df7e7bf57
Source dataset
uspto-grants-2012_06
Patent number
US08207162B2

Reaction notes

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