Acetic acid, 2-(triphenylphosphoranylidene)-, methyl ester → t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-(2-methoxycarbonylvinyl)indol-1-ylmethyl]-3-methoxybenzoate

HRID 1198959Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1198959
[CH:1]1([CH2:6][NH:7][C:8]([C:10]2[CH:18]=[C:17]3[C:13]([C:14](C=O)=[CH:15][N:16]3[CH2:19][C:20]3[CH:32]=[CH:31][C:23]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])=[CH:22][C:21]=3[O:33][CH3:34])=[CH:12][CH:11]=2)=[O:9])[CH2:5][CH2:4][CH2:3][CH2:2]1.C1(P(=[CH:56][C:57]([O:59][CH3:60])=[O:58])(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O1CCOC[CH2:62]1>>[CH:1]1([CH2:6][NH:7][C:8]([C:10]2[CH:18]=[C:17]3[C:13]([C:14]([CH:62]=[CH:56][C:57]([O:59][CH3:60])=[O:58])=[CH:15][N:16]3[CH2:19][C:20]3[CH:32]=[CH:31][C:23]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])=[CH:22][C:21]=3[O:33][CH3:34])=[CH:12][CH:11]=2)=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5]1

Komponenten

4

Edukt 3

HCID 17453Acetic acid, 2-(triphenylphosphoranylidene)-, methyl esterHCID 312751,4-DioxaneHCID 15013776t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-formylindol-1-ylmethyl]3-methoxybenzoate

Produkt 1

HCID 54500983t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-(2-methoxycarbonylvinyl)indol-1-ylmethyl]-3-methoxybenzoateAusbeute 84 %

Versuchsvorschrift

A solution of t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-formylindol-1-ylmethyl]-3-methoxybenzoate (1.2 g) and methyl (triphenylphosphoranylidene)acetate (1.8 g) in dioxane (12 ml) was heated at reflux for 48 hours. The solvent was evaporated. The resultant residue was purified by flash chromatography on silica gel (600 ml), eluting with 3:7 ethyl acetate:hexane, to give t-butyl 4-[6-(N-cyclopentylmethylcarbamoyl)-3-(2-methoxycarbonylvinyl)indol-1-ylmethyl]-3-methoxybenzoate (1.1 g, 84%) as a yellow solid; mp 163°-164°.

Aufarbeitung

  1. temperatureat reflux for 48 hours
  2. customThe solvent was evaporated
  3. customThe resultant residue was purified by flash chromatography on silica gel (600 ml)
  4. washeluting with 3:7 ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-4a9070751ca749af8a796669187dc9c4
Quelldatensatz
uspto-grants-1990_02
Patentnummer
US04898863

Notizen zur Reaktion

Wird geladen…