Triethylamine → HCID 86585910, compound

HRID 488366Notes

Reaction equation

HRID 488366 reaction equation
[O:1]=[C:2]1[N:6]([C:7]2[CH:8]=[C:9]3[C:14](=[CH:15][CH:16]=2)[CH2:13][NH:12][CH2:11][CH2:10]3)[CH2:5][C@H:4]([CH2:17][NH:18][C:19](=[O:25])[O:20][C:21]([CH3:24])([CH3:23])[CH3:22])[O:3]1.C(N(CC)CC)C.[CH2:33]([O:40][CH2:41][C:42](Cl)=[O:43])[C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1>C(Cl)Cl>[O:1]=[C:2]1[N:6]([C:7]2[CH:8]=[C:9]3[C:14](=[CH:15][CH:16]=2)[CH2:13][N:12]([C:42](=[O:43])[CH2:41][O:40][CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[CH2:11][CH2:10]3)[CH2:5][C@H:4]([CH2:17][NH:18][C:19](=[O:25])[O:20][C:21]([CH3:22])([CH3:24])[CH3:23])[O:3]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 177085Benzyloxyacetyl chlorideHCID 86585911HCID 86585911, compound

Product 1

HCID 86585910HCID 86585910, compoundYield 86%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

A solution of 1,1-dimethylethyl [[(5S)-2-oxo-3-[1,2,3,4-tetrahydro-6-isoquinolinyl]-5-oxazolidinyl]methyl]carbamate (Example 6, Step 2, 347 mg, 0.999 mmol) and triethylamine (0.21 mL, 1.50 mmol) in dry CH2Cl2 at 0° C. under N2 is treated with benzyloxyacetyl chloride (0.19 mL, 1.20 mmol), and the resulting mixture is stirred at 0° C. for 1 hr and then allowed to warm to ambient temperature. The reaction mixture is then diluted with CH2Cl2 (20 mL), washed with H2O (10 mL) and brine (10 mL), dried over Na2SO4 and concentrated under reduced pressure. The residue is chromatographed on a Flash 40S silica gel (40 g, 32-63 μm) cartridge, eluting with a gradient of MeOH/CH2Cl2 (1/99-2/98), and those fractions with an Rf=0.72 by TLC (MeOH/CHCl3, 10/90) are pooled and concentrated to give 425 mg (86%) of the title compound as an amorphous, glassy solid. MS (ESI+) for C27H33N3O6 m/z 496 (M+H)+.

Workup

  1. temperatureto warm to ambient temperature
  2. washwashed with H2O (10 mL) and brine (10 mL)
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customThe residue is chromatographed on a Flash 40S silica gel (40 g, 32-63 μm) cartridge
  6. washeluting with a gradient of MeOH/CH2Cl2 (1/99-2/98)
  7. concentrationconcentrated

Sources & evidence

ORD record
ord-8017faf662404f49af2ae32404bfe0b1
Source dataset
uspto-grants-2005_12
Patent number
US06972286B2

Reaction notes

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