Cesium carbonate → 1-[5-Chloro-8-(3-methoxypiperidin-1-yl)quinolin-7-yl]ethanone

HRID 1192615Notes

Reaction equation

FC(F)(F)S(O[C:7]1[C:8]([C:18](=[O:20])[CH3:19])=[CH:9][C:10]([Cl:17])=[C:11]2[C:16]=1[N:15]=[CH:14][CH:13]=[CH:12]2)(=O)=O.[CH3:23][O:24][CH:25]1[CH2:30][CH2:29][CH2:28][NH:27][CH2:26]1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCCC1.ClCCl.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.C1C=CC(P(C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:17][C:10]1[CH:9]=[C:8]([C:18](=[O:20])[CH3:19])[C:7]([N:27]2[CH2:28][CH2:29][CH2:30][CH:25]([O:24][CH3:23])[CH2:26]2)=[C:16]2[C:11]=1[CH:12]=[CH:13][CH:14]=[N:15]2

Participants

Conditions

Temperature: 65 °C

Procedure

A stirred mixture of 7-acetyl-5-chloroquinolin-8-yl trifluoromethanesulfonate (0.12 g, 0.34 mmol, from Example 47, Step 2), 3-methoxypiperidine (0.047 g, 0.41 mmol), palladium acetate (1.5 mg, 0.0068 mmol), (S)-(−)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (6.3 mg, 0.010 mmol), and cesium carbonate (0.31 g, 0.95 mmol) in tetrahydrofuran (3 mL) was heated at 65° C. overnight. The mixture was cooled, diluted with dichloromethane and filtered. The filtrate was washed with brine, dried over MgSO4 and evaporated under reduced pressure. The residue was purified on silica gel (eluting with 0 to 10% methanol in dichloromethane) to give the desired product (37.3 mg, 34%). LCMS calculated for C17H20ClN2O2 (M+H)+: m/z=319.1; Found: 319.1.

Workup

temperatureThe mixture was cooled
filtrationfiltered
washThe filtrate was washed with brine
dry with materialdried over MgSO4
customevaporated under reduced pressure
customThe residue was purified on silica gel (eluting with 0 to 10% methanol in dichloromethane)

Sources & evidence

ORD record: ord-7fd9c1a90b074dc7a3110e778e3669b6
Source dataset: uspto-grants-2014_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08680108B2

Reaction notes

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