Methyl iodide → 8-(2-Cyclopropyl-2-methoxy-ethanesulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one

HRID 2194187Notes

Reaction equation

HRID 2194187 reaction equation
[CH:1]1([CH:4]([OH:31])[CH2:5][S:6]([N:9]2[CH2:30][CH2:29][C:12]3([C:16](=[O:17])[N:15]([C:18]4[CH:23]=[CH:22][C:21]([O:24][C:25]([F:28])([F:27])[F:26])=[CH:20][CH:19]=4)[CH2:14][CH2:13]3)[CH2:11][CH2:10]2)(=[O:8])=[O:7])[CH2:3][CH2:2]1.S([O-])([O-])(=O)=O.[Ca+2].[CH3:38]I>[Ag]=O>[CH:1]1([CH:4]([O:31][CH3:38])[CH2:5][S:6]([N:9]2[CH2:10][CH2:11][C:12]3([C:16](=[O:17])[N:15]([C:18]4[CH:23]=[CH:22][C:21]([O:24][C:25]([F:28])([F:26])[F:27])=[CH:20][CH:19]=4)[CH2:14][CH2:13]3)[CH2:29][CH2:30]2)(=[O:8])=[O:7])[CH2:3][CH2:2]1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 24497Calcium SulfateHCID 595778968-(2-Cyclopropyl-2-hydroxy-ethanesulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one

Product 1

HCID 595780198-(2-Cyclopropyl-2-methoxy-ethanesulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-oneYield 40%

Reagents, catalysts & solvents 1

HCID 92152Silver(II) oxideCatalyst

Procedure

A mixture of 8-(2-cyclopropyl-2-hydroxy-ethanesulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one (described in example 208, 30 mg, 0.07 mmol), dry calcium sulfate (33 mg, 0.26 mmol) and silver oxide (60 mg, 0.26 mmol) in methyl iodide (1 mL) was stirred at room temperature for 48 h. The reaction mixture was filtered through Celite® and washed with methylene chloride. The filtrate was concentrated to dryness under reduced pressure to give the crude residue which was purified by flash column chromatography (1:1 AcOEt/heptane) which afforded the desired product as a white solid (12.5 mg, 40%). MS (ESI): 477.2 (MH+).

Workup

  1. filtrationThe reaction mixture was filtered through Celite®
  2. washwashed with methylene chloride
  3. concentrationThe filtrate was concentrated to dryness under reduced pressure
  4. customto give the crude residue which
  5. customwas purified by flash column chromatography (1:1 AcOEt/heptane) which

Sources & evidence

ORD record
ord-fe723fe5ceb84dfdb1098fc75e4c34fd
Source dataset
uspto-grants-2012_12
Patent number
US08329904B2

Reaction notes

Loading…