2-Bromoethanol → 2-{2-Ethyl-4-[5-(5-isobutyl-4-methyl-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-6-methyl-phenoxy}-ethanol

HRID 2037370노트

반응식

HRID 2037370 반응식
[CH2:1]([C:3]1[CH:8]=[C:7]([C:9]2[N:13]=[C:12]([C:14]3[CH:19]=[C:18]([CH3:20])[C:17]([CH2:21][CH:22]([CH3:24])[CH3:23])=[CH:16][N:15]=3)[O:11][N:10]=2)[CH:6]=[C:5]([CH3:25])[C:4]=1[OH:26])[CH3:2].Br[CH2:28][CH2:29][OH:30]>C(O)(C)C.[OH-].[Na+].CC(=O)OCC>[CH2:1]([C:3]1[CH:8]=[C:7]([C:9]2[N:13]=[C:12]([C:14]3[CH:19]=[C:18]([CH3:20])[C:17]([CH2:21][CH:22]([CH3:23])[CH3:24])=[CH:16][N:15]=3)[O:11][N:10]=2)[CH:6]=[C:5]([CH3:25])[C:4]=1[O:26][CH2:28][CH2:29][OH:30])[CH3:2]

참가 물질

6

반응물 2

HCID 108982-Bromoethanol2회HCID 1363440752-Ethyl-4-[5-(5-isobutyl-4-methyl-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-6-methyl-phenol

생성물 1

HCID 686309092-{2-Ethyl-4-[5-(5-isobutyl-4-methyl-pyridin-2-yl)-[1,2,4]oxadiazol-3-yl]-6-methyl-phenoxy}-ethanol수율 79.8%

시약·촉매·용매 3

HCID 3776Isopropanol용매HCID 8857Ethyl Acetate용매HCID 14798Sodium Hydroxide용매

실험 절차

To a solution of the compound of Example 32 (1.00 g, 2.85 mmol) in isopropanol (10 mL) and 3 M aq. NaOH (3 mL), 2-bromo-ethanol (1.42 g, 11.4 mmol) is added. The mixture is stirred at 60° C. for 24 h before another portion of 2-bromo-ethanol (176 mg, 1.41 mmol) is added. Stirring is continued at 60° C. for 6 h. The mixture is diluted with EA and washed with water. The org. extract is dried over MgSO4, filtered and concentrated. The crude product is purified by CC on silica gel eluting with heptane:EA 4:1 to 3:1 to give the title compound (900 mg) as a colourless oil; LC-MS: tR=1.10 min, [M+H]+=396.09.

후처리

  1. additionis added
  2. washwashed with water
  3. extractionextract
  4. dry with materialis dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product is purified by CC on silica gel eluting with heptane:EA 4:1 to 3:1

출처 및 근거

ORD 기록
ord-2b1c853e3f5c4631af10271e6abb2398
출처 데이터셋
uspto-grants-2013_11
특허 번호
US08575200B2

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