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Ammonia → 3-[4-(1-methyl piperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulen-2-yl]-acrylic acid tert-butyl ester

HRID 1773872
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HRID 1773872 반응식
I[C:2]1[N:11]=[C:10]2[N:4]([CH2:5][CH2:6][C:7]3[CH:23]=[CH:22][CH:21]=[CH:20][C:8]=3[CH:9]2[O:12][CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)[CH:3]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[C:43]([O:47][C:48](=[O:51])[CH:49]=[CH2:50])([CH3:46])([CH3:45])[CH3:44].CCN(CC)CC.N>CN(C=O)C.CC([O-])=O.CC([O-])=O.[Pd+2].O>[C:43]([O:47][C:48](=[O:51])[CH:49]=[CH:50][C:2]1[N:11]=[C:10]2[N:4]([CH2:5][CH2:6][C:7]3[CH:23]=[CH:22][CH:21]=[CH:20][C:8]=3[CH:9]2[O:12][CH:13]2[CH2:14][CH2:15][N:16]([CH3:19])[CH2:17][CH2:18]2)[CH:3]=1)([CH3:46])([CH3:45])[CH3:44]
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참가 물질

9

반응물 5

HCID 222AmmoniaHCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 15458tert-Butyl acrylateHCID 726957782-iodo-4-(1-methyl piperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene

생성물 1

HCID 867039593-[4-(1-methyl piperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulen-2-yl]-acrylic acid tert-butyl ester

시약·촉매·용매 3

HCID 167845palladium(II) acetate촉매HCID 962Water용매HCID 6228Dimethylformamide용매

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온도
100 °C

실험 절차

To a solution of compound 2-iodo-4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulene (example 2A) (100 mg, 0.24 mmoles) in DMF (2.5 mL) in a screw-capped vial under argon are added Pd(OAc)2 (5.4 mg, 24 μmole), PPh3 (16 mg, 60 μmole), tert-butylacrylate (175 μL, 0.96 mmole) and NEt3 (140 μL, 0.88 mmole). The reaction mixture is heated at 100° C. overnight. Water is added to the reaction mixture and pH adjusted to 9-10 by adding concentrated ammonia solution. The aqueous phase is extracted three times with CH2Cl2. The organic phase is dried over magnesium sulphate, filtered and the solvent is removed under reduced pressure. The residue is pre-purified by silica gel chromatography using (CH2Cl2:MeOH:NH4OH) as eluent with a gradient from (98:2:0.1) to (96.5:3.5:0.35) and the residue is submitted to a preparative thin-layer chromatography eluting with (CH2Cl2:MeOH:NH4OH) (9:1:1) to afford 3-[4-(1-methylpiperidin-4-yloxy)-9,10-dihydro-4H-3,10a-diaza-benzo[f]azulen-2-yl]-acrylic acid tert-butyl ester.

후처리

  1. extractionThe aqueous phase is extracted three times with CH2Cl2
  2. dry with materialThe organic phase is dried over magnesium sulphate
  3. filtrationfiltered
  4. customthe solvent is removed under reduced pressure
  5. customThe residue is pre-purified by silica gel chromatography
  6. washeluting with (CH2Cl2:MeOH:NH4OH) (9:1:1)

출처 및 근거

ORD 기록
ord-274981c49cf744f395d661be7c8eddcc
출처 데이터셋
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09255101B2

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