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4,4,5,5-Tetramethyl[1,3,2]dioxaborolane → tert-butyl 6-(8-(benzo[d]thiazol2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate

HRID 1778827
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1778827
[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[NH:10][C:11]([C:13]1[CH:14]=[CH:15][CH:16]=[C:17]2[C:22]=1[CH2:21][N:20]([C:23]1[N:28]=[C:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[C:26](Br)=[CH:25][CH:24]=1)[CH2:19][CH2:18]2)=[O:12].[CH3:37][C:38]1([CH3:45])[C:42]([CH3:44])([CH3:43])[O:41][BH:40][O:39]1>O1CCCC1.C(N(CC)CC)C.CC#N.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>[S:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[NH:10][C:11]([C:13]1[CH:14]=[CH:15][CH:16]=[C:17]2[C:22]=1[CH2:21][N:20]([C:23]1[N:28]=[C:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[C:26]([B:40]3[O:41][C:42]([CH3:44])([CH3:43])[C:38]([CH3:45])([CH3:37])[O:39]3)=[CH:25][CH:24]=1)[CH2:19][CH2:18]2)=[O:12]
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Komponenten

7

Edukt 2

HCID 27347684,4,5,5-Tetramethyl[1,3,2]dioxaborolaneHCID 594476151,1-Dimethylethyl 6-(8-((2-benzothiazolylamino)carbonyl)-3,4-dihydro-2(1H)-isoquinolinyl)-3-bromo-2-pyridinecarboxylate

Produkt 1

HCID 89498009tert-butyl 6-(8-(benzo[d]thiazol2-ylcarbamoyl)-3,4-dihydroisoquinolin-2(1H)-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)picolinate

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 178418807
HCID 178418807, Verbindung
Katalysator
HCID 6342AcetonitrileLösungsmittel
HCID 8028TetrahydrofuranLösungsmittel
HCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

A mixture of EXAMPLE 1D (1.2 g), 1.0 M 4,4,5,5-tetramethyl-1,3,2-dioxaborolane in tetrahydrofuran (4.24 mL), triethylamine (0.92 mL), and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) dichloromethane (0.087 g) in CH3CN (15 mL) was heated at 100° C. in a Biotage Initiator microwave reactor for 30 minutes. After cooling, the reaction mixture was partitioned between water and ethyl acetate. The organic layer was extracted with additional ethyl acetate twice. The combined organic layers were washed with brine, dried over MgSO4, filtered, and concentrated. The residue was purified by flash column chromatography on silica gel to provide the title compound.

Aufarbeitung

  1. temperatureAfter cooling
  2. customthe reaction mixture was partitioned between water and ethyl acetate
  3. extractionThe organic layer was extracted with additional ethyl acetate twice
  4. washThe combined organic layers were washed with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by flash column chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-2d93d92f92a3462bb4769ee861830935
Quelldatensatz
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09266877B2

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