Triethylamine → (S)-(-)-N-[[3-[4-[1-[(Benzyloxy)acetyl]-4-piperidinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]acetamide

HRID 1276431Notes

Reaction equation

HRID 1276431 reaction equation
[O:1]=[C:2]1[N:6]([C:7]2[CH:12]=[CH:11][C:10]([CH:13]3[CH2:18][CH2:17][NH:16][CH2:15][CH2:14]3)=[CH:9][CH:8]=2)[CH2:5][C@H:4]([CH2:19][NH:20][C:21](=[O:23])[CH3:22])[O:3]1.C(N(CC)CC)C.[CH2:31]([O:38][CH2:39][C:40](Cl)=[O:41])[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>C(Cl)Cl>[CH2:31]([O:38][CH2:39][C:40]([N:16]1[CH2:15][CH2:14][CH:13]([C:10]2[CH:11]=[CH:12][C:7]([N:6]3[CH2:5][C@H:4]([CH2:19][NH:20][C:21](=[O:23])[CH3:22])[O:3][C:2]3=[O:1])=[CH:8][CH:9]=2)[CH2:18][CH2:17]1)=[O:41])[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 177085Benzyloxyacetyl chlorideHCID 15888110(S)-(-)-N-[[2-Oxo-3-[4-(4-piperidinyl)phenyl]-5-oxazolidinyl]methyl]acetamide

Product 1

HCID 53881294(S)-(-)-N-[[3-[4-[1-[(Benzyloxy)acetyl]-4-piperidinyl]phenyl]-2-oxo-5-oxazolidinyl]methyl]acetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

A mixture of (S)-(-)-N-[[2-oxo-3-[4-(4-piperidinyl)phenyl]-5-oxazolidinyl]methyl]acetamide (EXAMPLE 17, 300 mg) and triethylamine (0.20 mL) in dry methylene chloride (19 mL) at 0° C. under N2 is treated with benzyloxyacetyl chloride (0.18 mL), and the resulting solution is stirred at 0° C. for one hour and at ambient temperature for one hour. The reaction mixture is then washed with water (2×10 mL), saturated aqueous sodium bicarbonate (10 mL) and saline (10 mL), dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the crude product which is chromatographed on silica gel (230-400 mesh, 45 g), eluting with a gradient of methanol/methylene chloride (1/99-2/98). Pooling and concentration of those fractions with an Rf =0.28 by TLC (methanol/chloroform, 5/95) gives the title compound, NMR (CDCl3, 400 MHz) 7.45, 7.35, 7.18, 6.26, 4.75, 4.63, 4.22, 4.04, 3.78, 3.70, 3.60, 3.09, 2.70, 2.02, 1.85, 1.60 δ.

Workup

  1. washThe reaction mixture is then washed with water (2×10 mL), saturated aqueous sodium bicarbonate (10 mL) and saline (10 mL)
  2. dry with materialdried over anhydrous sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customto give the crude product which
  5. customis chromatographed on silica gel (230-400 mesh, 45 g)
  6. washeluting with a gradient of methanol/methylene chloride (1/99-2/98)

Sources & evidence

ORD record
ord-b65c151cc7e94627a42a65eda96ea6d0
Source dataset
uspto-grants-2000_12
Patent number
US06166056

Reaction notes

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