Dimethylformamide → Methyl 6-{propyl[(3-{[2-(trimethylsilyl)ethoxy]carbonyl}phenyl)sulfonyl]amino}nicotinate

HRID 926049Notes

Reaction equation

[CH3:1][Si:2]([CH3:29])([CH3:28])[CH2:3][CH2:4][O:5][C:6]([C:8]1[CH:9]=[C:10]([S:14]([NH:17][C:18]2[CH:27]=[CH:26][C:21]([C:22]([O:24][CH3:25])=[O:23])=[CH:20][N:19]=2)(=[O:16])=[O:15])[CH:11]=[CH:12][CH:13]=1)=[O:7].CN(C=O)C.I[CH2:36][CH2:37][CH3:38].C(=O)([O-])[O-].[K+].[K+]>O>[CH2:36]([N:17]([S:14]([C:10]1[CH:11]=[CH:12][CH:13]=[C:8]([C:6]([O:5][CH2:4][CH2:3][Si:2]([CH3:28])([CH3:1])[CH3:29])=[O:7])[CH:9]=1)(=[O:15])=[O:16])[C:18]1[CH:27]=[CH:26][C:21]([C:22]([O:24][CH3:25])=[O:23])=[CH:20][N:19]=1)[CH2:37][CH3:38]

Participants

Conditions

Temperature: 80 °C

Procedure

To a mixture of 500 mg of methyl 6-{[(3-{[2-(trimethylsilyl)ethoxy]carbonyl}phenyl)sulfonyl]amino}nicotinate and 10 mL of DMF were added 0.300 mL of 1-iodopropane and 400 mg of potassium carbonate, followed by stirring at 80° C. for 5 hours. The reaction mixture was left to stand to cool and then water was added thereto, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, and then dried over magnesium sulfate. The solvent was evaporated under reduced pressure, and then the residue was purified by silica gel column chromatography (chloroform-ethyl acetate) to obtain 200 mg of a methyl 6-{propyl[(3-{[2-(trimethylsilyl)ethoxy]carbonyl}phenyl)sulfonyl]amino}nicotinate as a colorless oily substance. ESI+: 479

Workup

waitThe reaction mixture was left
temperatureto cool
extractionfollowed by extraction with ethyl acetate
washThe organic layer was washed with saturated brine
dry with materialdried over magnesium sulfate
customThe solvent was evaporated under reduced pressure
customthe residue was purified by silica gel column chromatography (chloroform-ethyl acetate)

Sources & evidence

ORD record: ord-9aae2aa85cc241c5a3ebe874f2942656
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09284295B2

Reaction notes

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