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Tributylphosphine → Methyl [(3S)-6-({3'-fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate

HRID 1908917
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HRID 1908917 반응식
[OH:1][C:2]1[CH:15]=[CH:14][C:5]2[C@H:6]([CH2:9][C:10]([O:12][CH3:13])=[O:11])[CH2:7][O:8][C:4]=2[CH:3]=1.[F:16][C:17]1[C:18]([CH3:40])=[C:19]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38]O)[CH:33]=2)[C:20]([CH3:31])=[CH:21][C:22]=1[O:23][CH2:24][CH2:25][CH2:26][S:27]([CH3:30])(=[O:29])=[O:28].C(P(CCCC)CCCC)CCC.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>CCCCCC.O1CCCC1.C1(C)C=CC=CC=1>[F:16][C:17]1[C:18]([CH3:40])=[C:19]([C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([CH2:38][O:1][C:2]3[CH:15]=[CH:14][C:5]4[C@H:6]([CH2:9][C:10]([O:12][CH3:13])=[O:11])[CH2:7][O:8][C:4]=4[CH:3]=3)[CH:33]=2)[C:20]([CH3:31])=[CH:21][C:22]=1[O:23][CH2:24][CH2:25][CH2:26][S:27]([CH3:30])(=[O:29])=[O:28]
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참가 물질

8

반응물 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 53393313(S)-Methyl 2-(6-hydroxy-2,3-dihydrobenzofuran-3-yl)acetateHCID 59342565{3'-Fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanol

생성물 1

HCID 59342579Methyl [(3S)-6-({3'-fluoro-2',6'-dimethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methoxy)-2,3-dihydro-1-benzofuran-3-yl]acetate
수율 77%

시약·촉매·용매 3

HCID 1140Toluene용매HCID 8028Tetrahydrofuran용매HCID 8058Hexane용매

실험 절차

A solution of methyl [(3S)-6-hydroxy-2,3-dihydro-1-benzofuran-3-yl]acetate (0.729 g, 3.50 mmol), {3′-fluoro-2′,6′-dimethyl-4′-[3-(methylsulfonyl)propoxy]biphenyl-3-yl}methanol (1.28 g, 3.50 mmol) and tributylphosphine (1.13 g, 5.60 mmol) in a mixed solvent of toluene (45 mL) and tetrahydrofuran (5 mL) was stirred, 1,1′-(azodicarbonyl)dipiperidine (1.41 g, 5.60 mmol) was added, and the mixture was stirred at room temperature for 4 hr under nitrogen atmosphere. Hexane (50 mL) was added to the reaction mixture, the precipitated insoluble substance was filtered off, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=40:60-80:20) and basic silica gel column chromatography (ethyl acetate:hexane=40:60-100:0), and the obtained crystals were recrystallized from heptane-ethyl acetate to give the title compound (1.50 g, yield 77%) as colorless crystals.

후처리

  1. filtrationthe precipitated insoluble substance was filtered off
  2. concentrationthe filtrate was concentrated under reduced pressure
  3. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=40:60-80:20) and basic silica gel column chromatography (ethyl acetate:hexane=40:60-100:0)
  4. customthe obtained crystals were recrystallized from heptane-ethyl acetate

출처 및 근거

ORD 기록
ord-fd4129143eb342ce9c06619c05254874
출처 데이터셋
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08598226B2

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