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Cesium carbonate → Methyl 2-((S)-6-((R)-4-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate

HRID 237510
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인쇄 미리보기

반응식

HRID 237510 반응식
Br[C:2]1[CH:10]=[CH:9][C:8]([F:11])=[C:7]2[C:3]=1[CH2:4][CH2:5][C@H:6]2[O:12][C:13]1[CH:26]=[CH:25][C:16]2[C@H:17]([CH2:20][C:21]([O:23][CH3:24])=[O:22])[CH2:18][O:19][C:15]=2[CH:14]=1.[CH3:27][C:28]1[CH:33]=[C:32]([O:34][CH2:35][CH2:36][CH2:37][S:38]([CH3:41])(=[O:40])=[O:39])[CH:31]=[C:30]([CH3:42])[C:29]=1B1OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1.Cl[Pd]Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2].C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[CH3:42][C:30]1[CH:31]=[C:32]([O:34][CH2:35][CH2:36][CH2:37][S:38]([CH3:41])(=[O:39])=[O:40])[CH:33]=[C:28]([CH3:27])[C:29]=1[C:2]1[CH:10]=[CH:9][C:8]([F:11])=[C:7]2[C:3]=1[CH2:4][CH2:5][C@H:6]2[O:12][C:13]1[CH:26]=[CH:25][C:16]2[C@H:17]([CH2:20][C:21]([O:23][CH3:24])=[O:22])[CH2:18][O:19][C:15]=2[CH:14]=1
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참가 물질

7

반응물 3

HCID 10796Cesium carbonateHCID 86697103{(S)-6-[(R)-4-bromo-7-fluoro-indan-1-yloxy]-2,3-dihydro-benzofuran-3-yl}-acetic acid methyl ester2회HCID 866971722-(2,6-Dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

생성물 1

HCID 86697171Methyl 2-((S)-6-((R)-4-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate
수율 20.3%

시약·촉매·용매 3

HCID 635956Ferrocene-1,1'-bis-(diphenylphosphine)촉매HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매HCID 1140Toluene용매

반응 조건

온도
120 °C

실험 절차

Methyl 2-((S)-6-((R)-4-bromo-7-fluoro-2,3-dihydro-1H-inden-1-yloxy)-2,3-dihydrobenzofuran-3-yl)acetate [intermediate 1, step 3] (32 mg), 2-(2,6-dimethyl-4-(3-(methylsulfonyl)propoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (42 mg), [1,1′-bis(diphenylphosphino)-ferrocene]-dichloropalladium-(II) (6 mg), 1,1′-bis(diphenylphosphino)-ferrocene (4 mg) and caesium carbonate (50 mg) are suspended in toluene (2 mL) and degassed for 5 minutes with a flow of nitrogen. The mixture is heated under microwave irradiation for 90 minutes at 120° C. The mixture is diluted with ethyl acetate, washed with water, the organic phase dried and the solvent removed under vacuum. The residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 100:0→50:50) to give the title compound (9 mg). LC (method 19): tR=1.38 min; Mass spectrum: m/z=583 [M+H]+.

후처리

  1. customdegassed for 5 minutes with a flow of nitrogen
  2. additionThe mixture is diluted with ethyl acetate
  3. washwashed with water
  4. customthe organic phase dried
  5. customthe solvent removed under vacuum
  6. customThe residue is purified by chromatography on silica gel (cyclohexane/ethyl acetate 100:0→50:50)

출처 및 근거

ORD 기록
ord-77fc04c6f6774be492d87f6c4292db09
출처 데이터셋
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08642585B2

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