Cesium carbonate → Methyl cis(+/-)-4-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)-6-methylpyridine-2-carboxylate

HRID 43766

Reaction equation

HRID 43766 reaction equation
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.Cl[C:22]1[CH:27]=[C:26]([CH3:28])[N:25]=[C:24]([C:29]([O:31][CH2:32]C)=[O:30])[CH:23]=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:27]=[C:26]([CH3:28])[N:25]=[C:24]([C:29]([O:31][CH3:32])=[O:30])[CH:23]=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

Participants

6

Reactant 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 22727099HCID 22727099, compoundHCID 86648698Benzyl cis(+/-)-[3-methoxypiperidin-4-yl]carbamate hydrochloride

Product 1

HCID 86648714Methyl cis(+/-)-4-(4-{[(benzyloxy)carbonyl]amino}-3-methoxypiperidin-1-yl)-6-methylpyridine-2-carboxylateYield 34.5%

Reagents, catalysts & solvents 1

HCID 167845palladium(II) acetateCatalyst

Procedure

The same operation as in Example (42a) was performed using benzyl cis(±)-[3-methoxypiperidin-4-yl]carbamate hydrochloride obtained in Example (160a) (409 mg, 1.36 mmol), ethyl 4-chloro-6-methylpyridine-2-carboxylate (272 mg, 1.36 mmol), palladium acetate (30.6 mg, 0.14 mmol), BINAP (169 mg, 0.27 mmol) and cesium carbonate (1.33 g, 4.08 mmol), to obtain 194 mg of the title compound as a yellow oily substance.

Sources & evidence

ORD record
ord-9241cb554be5495b89f0154e89f1cb91
Source dataset
uspto-grants-2013_09
Patent number
US08536197B2

Linked notes

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