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Sodium Hydroxide → Tert-butyl [(3-{5-[2-(methoxymethyl)-2'-methylbiphenyl-4-yl]-1,2,4-oxadiazol-3-yl}benzyl)oxy]acetate

HRID 219983
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HRID 219983 반응식
[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]2[O:14][N:13]=[C:12]([C:15]3[CH:16]=[C:17]([CH2:21][OH:22])[CH:18]=[CH:19][CH:20]=3)[N:11]=2)[CH:7]=[CH:6][C:5]=1[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[CH3:29].Br[CH2:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33].[OH-].[Na+]>C1(C)C=CC=CC=1.S([O-])(O)(=O)=O.C([N+](CCCC)(CCCC)CCCC)CCC>[CH3:1][O:2][CH2:3][C:4]1[CH:9]=[C:8]([C:10]2[O:14][N:13]=[C:12]([C:15]3[CH:16]=[C:17]([CH:18]=[CH:19][CH:20]=3)[CH2:21][O:22][CH2:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[N:11]=2)[CH:7]=[CH:6][C:5]=1[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[CH3:29]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 14798Sodium HydroxideHCID 79177tert-Butyl bromoacetateHCID 59495704(3-{5-[2-(Methoxymethyl)-2'-methylbiphenyl-4-yl]-1,2,4-oxadiazol-3-yl}phenyl)methanol

생성물 1

HCID 86645659Tert-butyl [(3-{5-[2-(methoxymethyl)-2'-methylbiphenyl-4-yl]-1,2,4-oxadiazol-3-yl}benzyl)oxy]acetate

시약·촉매·용매 2

HCID 94433Tetrabutylammonium hydrogen sulfate
촉매
HCID 1140Toluene용매

실험 절차

To a solution of (3-{5-[2-(methoxymethyl)-2′-methylbiphenyl-4-yl]-1,2,4-oxadiazol-3-yl}phenyl)methanol, prepared as in example 159, step 1, (500 mg, 1.29 mmol) in toluene (10 mL) were added tert-butyl bromoacetate (215 μl, 1.45 mmol) and tetrabutylammonium hydrogen sulfate (45 mg, 0.13 mmol), followed by a 33% aqueous solution of sodium hydroxide (10 mL). The biphasic mixture was stirred strongly at RT for 45 minutes. The aqueous layer was removed. The organic layer was diluted with Et2O (20 mL) and washed with water (10 mL), then brine (10 mL). The organic layer was dried (MgSO4) and the solvents were removed under reduced pressure to give a yellow oil. This oil was purified by flash chromatography on silica (cHex/EtOAc) to give the title compound as a colorless oil. LC/MS (Method A): 501.4 (M+H)+. HPLC (Method A) Rt: 6.52 min (purity: 99.5%).

후처리

  1. customThe aqueous layer was removed
  2. additionThe organic layer was diluted with Et2O (20 mL)
  3. washwashed with water (10 mL)
  4. dry with materialThe organic layer was dried (MgSO4)
  5. customthe solvents were removed under reduced pressure
  6. customto give a yellow oil
  7. customThis oil was purified by flash chromatography on silica (cHex/EtOAc)

출처 및 근거

ORD 기록
ord-27087d266856426d9cabfebe563e8e3a
출처 데이터셋
uspto-grants-2012_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08202865B2

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