1-(2-Hydroxyethyl)-1H-pyrazole → 5-(1,3-Dioxolan-2-yl)-3-[2-(1H-pyrazol-1-yl)ethoxy]-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-indazole

HRID 1038395노트

반응식

HRID 1038395 반응식
[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[CH:7]=[C:8]2[C:12](=[CH:13][CH:14]=1)[N:11]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[N:10]=[C:9]2I.[N:24]1([CH2:29][CH2:30][OH:31])[CH:28]=[CH:27][CH:26]=[N:25]1>C1(C)C=CC=CC=1>[O:1]1[CH2:5][CH2:4][O:3][CH:2]1[C:6]1[CH:7]=[C:8]2[C:12](=[CH:13][CH:14]=1)[N:11]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[N:10]=[C:9]2[O:31][CH2:30][CH2:29][N:24]1[CH:28]=[CH:27][CH:26]=[N:25]1

참가 물질

4

반응물 2

HCID 2370311-(2-Hydroxyethyl)-1H-pyrazoleHCID 584076045-(1,3-Dioxolan-2-yl)-3-iodo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-indazole

생성물 1

HCID 584076485-(1,3-Dioxolan-2-yl)-3-[2-(1H-pyrazol-1-yl)ethoxy]-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-indazole

시약·촉매·용매 1

HCID 1140Toluene용매

반응 조건

온도
140 °C

실험 절차

The title compound was prepared from 300 mg (0.672 mmol) 5-(1,3-dioxolan-2-yl)-3-iodo-1-([2-(trimethylsilyl)ethoxy]methyl)-1H-indazole (Example 6A) in analogy to the procedure described in Example 21A. The procedure was modified by using 5 equivalents of 2-(1H-pyrazol-1-yl)-ethanol as the alcohol reactant and by switching to toluene as solvent. The reaction mixture was heated to 140° C. for 2 h using microwave irradiation, after which time the same amounts of catalyst and ligand were added again. This cycle was repeated one more time. The crude product thus obtained was purified by preparative RP-HPLC (acetonitrile/water gradient) to afford 153 mg (52% of th.) of the title compound.

후처리

  1. custommicrowave irradiation
  2. additionafter which time the same amounts of catalyst and ligand were added again
  3. customThe crude product thus obtained

출처 및 근거

ORD 기록
ord-25444444e97f4654961443b38a90f509
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08551989B2

반응 노트

불러오는 중…