Potassium Carbonate → HCID 67960123, Verbindung

HRID 1529407Notizen

Reaktionsgleichung

Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH:11]1[CH2:16][CH2:15][CH2:14][CH2:13][O:12]1)[N:6]=[C:5]2[C:17]1[N:22]=[C:21]([O:23][C@H:24]2[CH2:31][N:30]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:29][CH2:28][C:25]32[CH2:27][CH2:26]3)[CH:20]=[N:19][CH:18]=1.[CH3:39][Si:40]([CH3:59])([CH3:58])[C:41]#[C:42][C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][C:44]=1B1OC(C)(C)C(C)(C)O1.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1>[O:12]1[CH2:13][CH2:14][CH2:15][CH2:16][CH:11]1[N:7]1[C:8]2[C:4](=[CH:3][C:2]([C:48]3[CH:47]=[CH:46][CH:45]=[CH:44][C:43]=3[C:42]#[C:41][Si:40]([CH3:39])([CH3:59])[CH3:58])=[CH:10][CH:9]=2)[C:5]([C:17]2[N:22]=[C:21]([O:23][C@H:24]3[CH2:31][N:30]([C:32]([O:34][C:35]([CH3:38])([CH3:36])[CH3:37])=[O:33])[CH2:29][CH2:28][C:25]43[CH2:26][CH2:27]4)[CH:20]=[N:19][CH:18]=2)=[N:6]1

Komponenten

Reaktionsbedingungen

Temperatur: 160 °C

Versuchsvorschrift

A mixture of (4R)-tert-butyl 4-(6-(5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-3-yl)pyrazin-2-yloxy)-6-azaspiro[2.5]octane-6-carboxylate (159 mg, 0.272 mmol), trimethyl((2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethynyl)silane (123 mg, 0.408 mmol), PdCl2(Amphos) (19.26 mg, 0.027 mmol), and potassium carbonate (408 μL, 0.816 mmol) in dioxane (2720 μL) was heated in the microwave for 10 min at 160° C. The crude was purified via automated flash chromatography (silica gel) with 100% hexanes to 20% EtOAc/hexanes to give (4R)-tert-butyl 4-(6-(1-(tetrahydro-2H-pyran-2-yl)-5-(2-((trimethylsilyl)ethynyl)phenyl)-1H-indazol-3-yl)pyrazin-2-yloxy)-6-azaspiro[2.5]octane-6-carboxylate (110 mg, 0.162 mmol, 59.7% yield) as a yellowish oil. MS (ESI, pos. ion) m/z: 678.2 (M+1).

Aufarbeitung

customThe crude was purified

Quellen und Nachweise

ORD-Eintrag: ord-3c30f1e6893941d18a53e36e9780d165
Quelldatensatz: uspto-grants-2015_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09090593B2

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