Triethylamine → (E)-2-{3-[4-({6-[(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)butyl]phenyl}-N-methylethenesulfonamide

HRID 2117668Notes

Reaction equation

HRID 2117668 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][CH2:10][CH2:11][O:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][N:19]2[CH2:23][C@@H:22]([C:24]3[CH:35]=[CH:34][C:27]4[O:28][C:29]([CH3:33])([CH3:32])[O:30][CH2:31][C:26]=4[CH:25]=3)[O:21][C:20]2=[O:36])[CH:5]=[CH:6][CH:7]=1.[CH3:37][NH:38][S:39]([CH:42]=[CH2:43])(=[O:41])=[O:40].C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C(N(CC)CC)C>CN(C=O)C.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:32][C:29]1([CH3:33])[O:28][C:27]2[CH:34]=[CH:35][C:24]([C@H:22]3[O:21][C:20](=[O:36])[N:19]([CH2:18][CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][O:12][CH2:11][CH2:10][CH2:9][CH2:8][C:4]4[CH:3]=[C:2](/[CH:43]=[CH:42]/[S:39]([NH:38][CH3:37])(=[O:41])=[O:40])[CH:7]=[CH:6][CH:5]=4)[CH2:23]3)=[CH:25][C:26]=2[CH2:31][O:30]1

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 80271Tri-o-tolylphosphineHCID 21895383N-MethylethenesulfonamideHCID 69200206(5R)-3-{6-[4-(3-bromophenyl)butoxy]hexyl}-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one

Product 1

HCID 69199403(E)-2-{3-[4-({6-[(5R)-5-(2,2-Dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)butyl]phenyl}-N-methylethenesulfonamideYield 20.5%

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 6228DimethylformamideSolvent

Procedure

A stirred mixture (5R)-3-{6-[4-(3-bromophenyl)butoxy]hexyl}-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one (1.0 g), N-methylethenesulphonamide (WO 95/09166), (462 mg), tri-o-tolylphosphine (200 mg), palladium acetate (165 mg) and triethylamine (5 ml) in dry DMF (15 ml) was heated at 90° C. for 18 h. The mixture was cooled and filtered. The filtrate was poured into water (200 ml) and extracted into ethyl acetate (3×50 ml). The combined extracts were washed with water (100 ml) and (Na2SO4) and evaporated in vacuo. The residual oil was purified by chromatography on Biotage (40 g) eluting with diethyl ether-ethyl acetate (9:1) to give the title compound (220 mg). LCMS RT=3.70 min.

Workup

  1. temperatureThe mixture was cooled
  2. filtrationfiltered
  3. additionThe filtrate was poured into water (200 ml)
  4. extractionextracted into ethyl acetate (3×50 ml)
  5. washThe combined extracts were washed with water (100 ml) and (Na2SO4)
  6. customevaporated in vacuo
  7. customThe residual oil was purified by chromatography on Biotage (40 g)
  8. washeluting with diethyl ether-ethyl acetate (9:1)

Sources & evidence

ORD record
ord-0c347c992081486cb93527a8c55f31c5
Source dataset
uspto-grants-2008_10
Patent number
US07442719B2

Reaction notes

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