Cesium carbonate → Ethyl cis(+/-)-5-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyridine-3-carboxylate

HRID 43755

Reaktionsgleichung

Reaktionsgleichung von HRID 43755
Cl.[CH3:2][O:3][C@H:4]1[C@@H:9]([NH:10][C:11](=[O:20])[O:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:8][CH2:7][NH:6][CH2:5]1.Br[C:22]1[CH:23]=[C:24]([C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH:25]=[N:26][CH:27]=1.C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH2:13]([O:12][C:11]([NH:10][C@H:9]1[CH2:8][CH2:7][N:6]([C:22]2[CH:23]=[C:24]([C:28]([O:30][CH2:31][CH3:32])=[O:29])[CH:25]=[N:26][CH:27]=2)[CH2:5][C@H:4]1[O:3][CH3:2])=[O:20])[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

Komponenten

6

Edukt 4

HCID 10796Cesium carbonateHCID 140785Ethyl 5-bromopyridine-3-carboxylateHCID 634876Binap, (A+-)-HCID 86648698Benzyl cis(+/-)-[3-methoxypiperidin-4-yl]carbamate hydrochloride

Produkt 1

HCID 86648702Ethyl cis(+/-)-5-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)pyridine-3-carboxylateAusbeute 51,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 167845palladium(II) acetateKatalysator

Versuchsvorschrift

The same operation as in Example (160b) was performed using benzyl cis(±)-[3-methoxypiperidin-4-yl]carbamate hydrochloride obtained in Example (160a) (832 mg, 2.76 mmol), ethyl 5-bromopyridine-3-carboxylate (530 mg, 2.3 mmol), palladium acetate (51.72 mg, 0.23 mmol), BINAP (286.89 mg, 0.46 mmol), and cesium carbonate (2.25 g, 6.91 mmol), to obtain 487 mg of the title compound as a yellow oily substance.

Quellen und Nachweise

ORD-Eintrag
ord-f7084e78cd4e493192a1becde05d7c28
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08536197B2

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