Sodium Bicarbonate → 1-[4-[3-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]propoxy]2-hydroxy-5-methoxyphenyl]ethanone

HRID 55676Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 55676
[F:1][C:2]1[CH:16]=[CH:15][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][NH:12][CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1.Cl[CH2:18][CH2:19][CH2:20][O:21][C:22]1[C:27]([O:28][CH3:29])=[CH:26][C:25]([C:30](=[O:32])[CH3:31])=[C:24]([OH:33])[CH:23]=1.C([O-])(O)=O.[Na+]>C(#N)C>[F:1][C:2]1[CH:16]=[CH:15][C:5]2[C:6]([CH:9]3[CH2:10][CH2:11][N:12]([CH2:18][CH2:19][CH2:20][O:21][C:22]4[C:27]([O:28][CH3:29])=[CH:26][C:25]([C:30](=[O:32])[CH3:31])=[C:24]([OH:33])[CH:23]=4)[CH2:13][CH2:14]3)=[N:7][O:8][C:4]=2[CH:3]=1

Komponenten

5

Edukt 3

HCID 516892Sodium BicarbonateHCID 8494213-(4-Piperidyl)-6-fluoro-1,2-benzisoxazoleHCID 184672431-[4-(3-Chloropropoxy)-2-hydroxy-5-methoxyphenyl]ethanone

Produkt 1

HCID 224570921-[4-[3-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]propoxy]2-hydroxy-5-methoxyphenyl]ethanoneAusbeute 13,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

A mixture of 6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole (4.2 g, 19 mmol), 1-[4-(3-chloropropoxy)-2-hydroxy-5-methoxyphenyl]ethanone (5.0 g, 19 mmol), NaHCO3 (1.8 g, 20 mmol) and acetonitrile (120 mL) was stirred and refluxed for 16 hours. The reaction was filtered and the filtrate was concentrated to a dark oil. The oil was taken up in anhydrous ether and ethereal HCl was added to precipitate 8.7 g of an off-white hydrochloride salt. A 2.0 g sample of the salt was converted to its free base and chromatographed by preparative HPLC (silica gel with 5% MeOH/CH2Cl2 as eluent). Concentration of the desired fractions gave 1.1 g of a white solid, which was recrystallized from EtOH to yield 0.85 g of the product, m.p. 122°-124° C.

Aufarbeitung

  1. temperaturerefluxed for 16 hours
  2. filtrationThe reaction was filtered
  3. concentrationthe filtrate was concentrated to a dark oil
  4. additionethereal HCl was added
  5. customto precipitate 8.7 g of an off-white hydrochloride salt
  6. customchromatographed by preparative HPLC (silica gel with 5% MeOH/CH2Cl2 as eluent)

Quellen und Nachweise

ORD-Eintrag
ord-e28f2dfc7176435eac20d681e24c92ee
Quelldatensatz
uspto-grants-1997_04
Patentnummer
US05624927

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