Lansoprazole → 1-(pyridine-3-sulfonyl)-2-[(3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl)methylsulfinyl]-1H-benzimidazole

HRID 411613Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 411613
[CH3:1][C:2]1[C:3]([CH2:14][S:15]([C:17]2[NH:21][C:20]3[CH:22]=[CH:23][CH:24]=[CH:25][C:19]=3[N:18]=2)=[O:16])=[N:4][CH:5]=[CH:6][C:7]=1[O:8][CH2:9][C:10]([F:13])([F:12])[F:11].[N:26]1[CH:31]=[CH:30][CH:29]=[C:28]([S:32](Cl)(=[O:34])=[O:33])[CH:27]=1>ClCCl.C(N(CC)CC)C>[N:26]1[CH:31]=[CH:30][CH:29]=[C:28]([S:32]([N:21]2[C:20]3[CH:22]=[CH:23][CH:24]=[CH:25][C:19]=3[N:18]=[C:17]2[S:15]([CH2:14][C:3]2[C:2]([CH3:1])=[C:7]([O:8][CH2:9][C:10]([F:13])([F:11])[F:12])[CH:6]=[CH:5][N:4]=2)=[O:16])(=[O:34])=[O:33])[CH:27]=1

Komponenten

5

Edukt 2

HCID 3883LansoprazoleHCID 3164136Pyridine-3-sulfonyl chloride

Produkt 1

HCID 103114351-(pyridine-3-sulfonyl)-2-[(3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl)methylsulfinyl]-1H-benzimidazoleAusbeute 68 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

2-[[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl]methyl]sulfinyl]-1H-benzimidazole (370 mg) was dissolved in 20 ml of dichloromethane and 1 ml of triethylamine. Pyridine-3-sulfonyl chloride (195 mg) was added and stirred in ice-bath for 5 hr. Dichloromethane layer was washed with an aqueous solution composed of 0.1M NaCl and 0.1M sodium bicarbonate. Dichloromethane layer was dried over anhydrous magnesium sulfate. Solvent was removed under reduced pressure. Residual material was precipitated by dichloromethane-ethyl ether-heptane to provide 348 mg of 1-(pyridine-3-sulfonyl)-2-[(3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridyl)methylsulfinyl]-1H-benzimidazole.

Aufarbeitung

  1. washDichloromethane layer was washed with an aqueous solution
  2. dry with materialDichloromethane layer was dried over anhydrous magnesium sulfate
  3. customSolvent was removed under reduced pressure
  4. customResidual material was precipitated by dichloromethane-ethyl ether-heptane

Quellen und Nachweise

ORD-Eintrag
ord-59ee65c6d6894c7082c058d4936d9574
Quelldatensatz
uspto-grants-2003_05
Patentnummer
US06559167B1

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