Potassium Carbonate → HCID 68523343, compound

HRID 1992351Notes

Reaction equation

Br[CH2:2][CH2:3][NH:4][S:5]([C:8]1[CH:13]=[CH:12][C:11]([F:14])=[CH:10][CH:9]=1)(=[O:7])=[O:6].[C:15]([O:19][C:20]([N:22]1[CH2:29][CH:28]2[O:30][CH:24]([CH2:25][NH:26][CH2:27]2)[CH2:23]1)=[O:21])([CH3:18])([CH3:17])[CH3:16].C([O-])([O-])=O.[K+].[K+]>C(#N)C>[C:15]([O:19][C:20]([N:22]1[CH2:23][CH:24]2[O:30][CH:28]([CH2:27][N:26]([CH2:2][CH2:3][NH:4][S:5]([C:8]3[CH:13]=[CH:12][C:11]([F:14])=[CH:10][CH:9]=3)(=[O:7])=[O:6])[CH2:25]2)[CH2:29]1)=[O:21])([CH3:18])([CH3:16])[CH3:17]

Participants

Conditions

Temperature: 60 °C

Procedure

A suspension of N-(2-Bromo-ethyl)-4-fluoro-benzenesulfonamide (7 g, 0.0179 mol; see step (i) above) and 9-oxa-3,7-diaza-bicyclo[3.3.1]nonane-3-carboxylic acid tert-butyl ester (11.2 g, 0.159 mol; see WO 01/28992) and K2CO3 (9.7 g, 0.0798 mol) in dry acetonitrile (70 ml) was stirred at 60° C. overnight under nitrogen atmosphere. The reaction mixture was partitioned between brine and ethyl acetate. Organic layer was washed with brine and dried over sodium sulfate. Solvent evaporation under reduced pressure followed by column chromatography over silica gel using 7% ethyl acetate in petroleum ether as eluent afforded the sub-title compound as a solid. Yield: 4 g

Workup

customThe reaction mixture was partitioned between brine and ethyl acetate
washOrganic layer was washed with brine
dry with materialdried over sodium sulfate
customSolvent evaporation under reduced pressure

Sources & evidence

ORD record: ord-0dd497de678b4d41a180dc8c20451ba6
Source dataset: uspto-grants-2010_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07648985B2

Reaction notes

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