Methyl iodide → HCID 10452763, compound

HRID 1077587Notes

Reaction equation

HRID 1077587 reaction equation
[CH2:1]([N:3]([CH2:26][CH3:27])[C:4]([C@H:6]1[CH2:11][CH2:10][C@H:9]2[C@H:12]3[C@H:22]([CH2:23][CH2:24][C@:7]12[CH3:8])[C@:20]1([CH3:21])[C:15](=[CH:16][C:17](=[O:25])[CH2:18][CH2:19]1)[NH:14][CH2:13]3)=[O:5])[CH3:2].[H-].[Na+].CI.[C:32](OCC)(=O)C>CN(C=O)C>[CH2:26]([N:3]([CH2:1][CH3:2])[C:4]([C@H:6]1[CH2:11][CH2:10][C@H:9]2[C@H:12]3[C@H:22]([CH2:23][CH2:24][C@:7]12[CH3:8])[C@:20]1([CH3:21])[C:15](=[CH:16][C:17](=[O:25])[CH2:18][CH2:19]1)[N:14]([CH3:32])[CH2:13]3)=[O:5])[CH3:27]

Participants

6

Reactant 4

HCID 6328Methyl iodideHCID 8857Ethyl AcetateHCID 24758Sodium hydrideHCID 10339275HCID 10339275, compound

Product 1

HCID 10452763HCID 10452763, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 17β-N,N-diethylcarbamoyl-6-azaandrost-4-en-3-one (24 mg, 0.065 mmol) in DMF (2 mL) at room temperature is added NaH (16 mg, 80% oil dispersion, 0.5 mmol) and, after 30 min, methyl iodide (50 μL, excess). After stirring for 30 min ethyl acetate (30 mL) is added, the solution washed with H2O and saturated aqueous NACl, dried over MgSO4, concentrated and flash chromatographed on silica gel (100% ethyl acetate to 5% methanol/chloroform) to give 17β-N,N-diethylcarbamoyl-6-methyl-6-azaandrost-4-ene-3-one as a white solid; yield 19 mg (76%). This material is then recrystallized from hexanes/methylene chloride to give 14 mg pure white solid; m.p. 158°-159° C. Anal. Calcd. for C24H38N2O2 ; C, 74.57; H, 9.91; N, 7.25. Found: C, 74.38; H, 9.84; N, 7.18.

Workup

  1. additionis added
  2. washthe solution washed with H2O and saturated aqueous NACl
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated
  5. customflash chromatographed on silica gel (100% ethyl acetate to 5% methanol/chloroform)

Sources & evidence

ORD record
ord-6808355675314299b5642594e310eac2
Source dataset
uspto-grants-1996_08
Patent number
US05543406

Reaction notes

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