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Toluene → methyl 6-chloro-5-[4-(1-hydroxy-cyclobutyl)-3-methoxy-phenyl]-1H-indole-3-carboxylate

HRID 1054712
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HRID 1054712 반응식
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([O:13][CH3:14])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1B1OCC(C)(C)CO1.Br[C:24]1[CH:29]=[CH:28][C:27]([C:30]2([OH:34])[CH2:33][CH2:32][CH2:31]2)=[CH:26][C:25]=1OC.[C:37](=O)([O-])[O-:38].[K+].[K+].C1(C)C=CC=CC=1>C(OCC)(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].ClCCl.C(O)C>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]([O:13][CH3:14])=[O:12])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:24]1[CH:25]=[CH:26][C:27]([C:30]2([OH:34])[CH2:31][CH2:32][CH2:33]2)=[C:28]([O:38][CH3:37])[CH:29]=1
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참가 물질

8

반응물 4

HCID 1140TolueneHCID 11430Potassium CarbonateHCID 86698665methyl 6-chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole-3-carboxylateHCID 866987131-(4-Bromo-3-methoxyphenyl)cyclobutanol

생성물 1

HCID 86698712methyl 6-chloro-5-[4-(1-hydroxy-cyclobutyl)-3-methoxy-phenyl]-1H-indole-3-carboxylate수율 32%

시약·촉매·용매 3

HCID 178418807HCID 178418807, 화합물촉매HCID 702Ethanol용매HCID 8857Ethyl Acetate용매

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온도
100 °C

실험 절차

A mixture of methyl 6-Chloro-5-(5,5-dimethyl-[1,3,2]dioxaborinan-2-yl)-1H-indole-3-carboxylate (50 mg, 0.16 mmol), 1-(4-Bromo-3-methoxy-phenyl)cyclobutanol (52 mg, 0.2 mmol), 2 M aqueous potassium carbonate (0.31 mL, 0.63 mmol), toluene (3 mL), and ethanol (1 mL) was sparged with nitrogen for 10 minutes, then treated with [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane adduct (6 mg, 0.007 mmol). The reaction mixture was heated to 100° C. and stirred. After 2 hours the reaction was cooled to room temperature, diluted with ethyl acetate, washed with water and saturated brine, dried over magnesium sulfate, filtered and concentrated in vacuo to afford a yellow oil, which was purified by flash chromatography (12 g silica, 0-35% ethyl acetate/heptane, 24 column volumes). Product fractions were combined and concentrated in vacuo to afford the title compound as a colorless solid (19 mg, 32% yield). MS (ES−) 341.2 (M−H)−; 1H NMR (500 MHz, CD3OD) δ 8.03 (d, J=1.95 Hz, 2 H), 7.60 (s, 1 H), 7.38 (d, J=7.56 Hz, 1 H), 7.06 (d, J=1.46 Hz, 1 H), 7.01 (dd, J=7.68, 1.59 Hz, 1 H), 3.89 (d, J=7.32 Hz, 6 H), 2.65-2.75 (m, 2 H), 2.34-2.44 (m, 2 H), 2.08-2.19 (m, 1 H), 1.70-1.80 (m, 1 H).

후처리

  1. customwas sparged with nitrogen for 10 minutes
  2. temperatureAfter 2 hours the reaction was cooled to room temperature
  3. washwashed with water and saturated brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto afford a yellow oil, which
  8. customwas purified by flash chromatography (12 g silica, 0-35% ethyl acetate/heptane, 24 column volumes)
  9. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-80cbf1efd5b54b45a73f9c5238658e9c
출처 데이터셋
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09394285B2

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