Cesium carbonate → 5-((2R,4R)-2-(3-fluorophenyl)-4-hydroxypyrrolidin-1-yl)-N,N-bis(4-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide

HRID 513027Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 513027
Br[C:2]1[CH:7]=[CH:6][N:5]2[N:8]=[CH:9][C:10]([C:11]([N:13]([CH2:23][C:24]3[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][CH:25]=3)[CH2:14][C:15]3[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=3)=[O:12])=[C:4]2[CH:3]=1.CC(OC1C=CC=C(OC(C)C)C=1C1C(P(C2CCCCC2)C2CCCCC2)=CC=CC=1)C.C(=O)([O-])[O-].[Cs+].[Cs+].[F:71][C:72]1[CH:73]=[C:74]([C@@H:78]2[NH:82][CH2:81][C@H:80]([OH:83])[CH2:79]2)[CH:75]=[CH:76][CH:77]=1>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.CC(O)(C)C>[F:71][C:72]1[CH:73]=[C:74]([C@H:78]2[CH2:79][C@@H:80]([OH:83])[CH2:81][N:82]2[C:2]2[CH:7]=[CH:6][N:5]3[N:8]=[CH:9][C:10]([C:11]([N:13]([CH2:23][C:24]4[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][CH:25]=4)[CH2:14][C:15]4[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=4)=[O:12])=[C:4]3[CH:3]=2)[CH:75]=[CH:76][CH:77]=1

Komponenten

7

Edukt 4

HCID 10796Cesium carbonateHCID 162179852-Dicyclohexylphosphino-2',6'-diisopropoxybiphenylHCID 67330070(3R,5R)-5-(3-fluorophenyl)pyrrolidin-3-olHCID 682824605-bromo-N,N-bis(4-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide

Produkt 1

HCID 682826095-((2R,4R)-2-(3-fluorophenyl)-4-hydroxypyrrolidin-1-yl)-N,N-bis(4-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 167845palladium(II) acetateKatalysatorHCID 6386tert-ButanolLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

A N2 purged flask was charged with 5-bromo-N,N-bis(4-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide (I-26) (0.19 g, 0.39 mmol), palladium acetate (3 mg, 12 μmol), RuPhos (11 mg, 24 μmol), cesium carbonate (0.25 g, 0.78 mmol), tBuOH (1 mL) and (3R,5R)-5-(3-fluorophenyl)pyrrolidin-3-ol (I-32) (71 mg, 0.39 mmol). The contents were heated to 120° C. overnight in an oil bath. Upon cooling to room temperature the reaction was filtered through celite and concentrated. The crude product was purified by column chromatography on silica gel with EtOAc/hexanes gradient as eluant to yield 5-((2R,4R)-2-(3-fluorophenyl)-4-hydroxypyrrolidin-1-yl)-N,N-bis(4-methoxybenzyl)pyrazolo[1,5-a]pyridine-3-carboxamide (I-33). 1H NMR (400 MHz, CDCl3) δ 7.96-7.84 (m, 1 H), 7.65-7.49 (m, 1 H), 7.09-7.04 (m, 3 H), 7.01-6.95 (m, 3 H), 6.92-6.81 (m, 3 H), 6.72-6.64 (m, 4 H), 6.05-5.92 (m, 1 H), 4.79-4.69 (m, 1 H), 4.56-4.41 (m, 3 H), 4.38-4.26 (m, 2 H), 3.96-3.86 (m, 1 H), 3.66-3.59 (m, 6 H), 2.63-2.49 (m, 1 H), 2.06-1.94 (m, 1 H), 1.87-1.79 (m, 1 H). MS m/z 581.2 (M+1)+

Aufarbeitung

  1. temperatureUpon cooling to room temperature the reaction
  2. filtrationwas filtered through celite
  3. concentrationconcentrated
  4. customThe crude product was purified by column chromatography on silica gel with EtOAc/hexanes gradient as eluant

Quellen und Nachweise

ORD-Eintrag
ord-e22dd26f7f2d47dab45fd853920507f7
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09102671B2

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