Sodium Methoxide → HCID 86585354, compound

HRID 2306982Notes

Reaction equation

HRID 2306982 reaction equation
[CH3:1][O:2][C:3](=[O:24])[CH:4]([C:9]1[NH:10][C:11]2[C:16]([C:17]=1[CH2:18][CH2:19][N:20]=[N+:21]=[N-:22])=[CH:15][CH:14]=[C:13]([F:23])[CH:12]=2)[C:5]([O:7][CH3:8])=[O:6].[CH3:25][O-].[Na+]>CO>[CH3:1][O:2][C:3](=[O:24])[C:4]([C:9]1[NH:10][C:11]2[C:16]([C:17]=1[CH2:18][CH2:19][N:20]=[N+:21]=[N-:22])=[CH:15][CH:14]=[C:13]([F:23])[CH:12]=2)([CH3:25])[C:5]([O:7][CH3:8])=[O:6]

Participants

4

Reactant 2

HCID 10942334Sodium MethoxideHCID 865853532-[3-(2-azidoethyl)-6-fluoro-1H-indol-2-yl]-propanedioic acid dimethyl ester

Product 1

HCID 86585354HCID 86585354, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Conditions

Temperature
0 °C

Procedure

To a solution of 2-[3-(2-azidoethyl)-6-fluoro-1H-indol-2-yl]-propanedioic acid dimethyl ester (37 mmol) in dry MeOH (0.25 L) at 0° C. under argon was added a solution of 25% NaOMe in MeOH (8.56 mL, 37.4 mmol). The mixture was stirred for 30 min at 0° C. Mel (3.56 mL, 56.6 mmol) was added. The mixture was refluxed for 42 h, cooled, and concentrated. The residue was partitioned between H2O and Et2O. The Et2O extracts were washed with H2O , dried, and concentrated to an oil. This oil was purified by silica chromatography to give the title compound: TLC Rf=0.50 (CH2Cl2); MS (ESI+) m/z 371.1; 1H NMR (CDCl3, 300 MHz) δ 9.63 (1H), 7.44 (1H), 7.05 (1H), 6.97 (1H), 3.82 (6H), 3.44 (2H), 2.94 (2H), 1.93 (3H).

Workup

  1. additionMel (3.56 mL, 56.6 mmol) was added
  2. temperatureThe mixture was refluxed for 42 h
  3. temperaturecooled
  4. concentrationconcentrated
  5. customThe residue was partitioned between H2O and Et2O
  6. washThe Et2O extracts were washed with H2O
  7. customdried
  8. concentrationconcentrated to an oil
  9. customThis oil was purified by silica chromatography

Sources & evidence

ORD record
ord-2fff881fbbdc4261b8ff91912c663353
Source dataset
uspto-grants-2004_12
Patent number
US06828314B2

Reaction notes

Loading…