Water → 1-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-5-[2-(2-methoxy-ethoxy)-ethoxymethyl]-1H-pyrazole-3-carboxylic acid ethyl ester

HRID 33259

Reaktionsgleichung

Reaktionsgleichung von HRID 33259
[CH2:1]([O:3][C:4]([C:6]1[CH:10]=[C:9]([CH2:11][OH:12])[N:8]([CH2:13][C:14]2[CH:18]=[C:17]([C:19]3[S:20][C:21]([Cl:24])=[CH:22][CH:23]=3)[O:16][N:15]=2)[N:7]=1)=[O:5])[CH3:2].Br[CH2:26][CH2:27][O:28][CH2:29][CH2:30][O:31][CH3:32].O>CN(C=O)C>[CH2:1]([O:3][C:4]([C:6]1[CH:10]=[C:9]([CH2:11][O:12][CH2:26][CH2:27][O:28][CH2:29][CH2:30][O:31][CH3:32])[N:8]([CH2:13][C:14]2[CH:18]=[C:17]([C:19]3[S:20][C:21]([Cl:24])=[CH:22][CH:23]=3)[O:16][N:15]=2)[N:7]=1)=[O:5])[CH3:2]

Komponenten

5

Edukt 3

HCID 962WaterHCID 1235321-Bromo-3,6-dioxaheptaneHCID 602079601-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-5-hydroxymethyl-1H-pyrazole-3-carboxylic acid ethyl ester

Produkt 1

HCID 602079631-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-5-[2-(2-methoxy-ethoxy)-ethoxymethyl]-1H-pyrazole-3-carboxylic acid ethyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 100 mg 1-[5-(5-Chloro-thiophen-2-yl)-isoxazol-3-ylmethyl]-5-hydroxymethyl-1H-pyrazole-3-carboxylic acid ethyl ester in 2 ml DMF 11 mg NaH (60% in mineral oil) were added at RT and stirred for 10 min. Then 100 mg 1-Bromo-2-(2-methoxy-ethoxy)-ethane were added and the mixture was stirred for 16 h. After addition of 5 ml of water the mixture was filtered through a chem elut® cartridge by elution with ethyl acetate and then concentrated under reduced pressure. The crude residue was directly subjected to the next reaction step. Yield: 130 mg.

Aufarbeitung

  1. stirringthe mixture was stirred for 16 h
  2. filtrationwas filtered through a chem elut® cartridge by elution with ethyl acetate
  3. concentrationconcentrated under reduced pressure
  4. customThe crude residue was directly subjected to the next reaction step

Quellen und Nachweise

ORD-Eintrag
ord-aee257896bf0442b8728612e6eb28f53
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07429581B2

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