Sodium hydride → tert-Butyl {1-[2-(5,7-difluoro-2-oxoquinolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate

HRID 1644299Notes

Reaction equation

HRID 1644299 reaction equation
[F:1][C:2]1[CH:11]=[C:10]([F:12])[CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][C:6](=[O:13])[NH:7]2.[H-].[Na+].CS(O[CH2:21][CH2:22][N:23]1[CH2:28][CH2:27][CH:26]([NH:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:25][CH2:24]1)(=O)=O.C(OC(=O)NC1CCN(CCN2C3C(=CC=C(F)C=3F)C=CC2=O)CC1)(C)(C)C>>[C:33]([O:32][C:30](=[O:31])[NH:29][CH:26]1[CH2:27][CH2:28][N:23]([CH2:22][CH2:21][N:7]2[C:8]3[C:3](=[C:2]([F:1])[CH:11]=[C:10]([F:12])[CH:9]=3)[CH:4]=[CH:5][C:6]2=[O:13])[CH2:24][CH2:25]1)([CH3:36])([CH3:35])[CH3:34]

Participants

5

Reactant 4

HCID 24758Sodium hydrideHCID 568344782-(4-((Tert-butoxycarbonyl)amino)piperidin-1-yl)ethyl methanesulfonate2×HCID 642082495,7-Difluoro-1,2-dihydroquinolin-2-one2×HCID 86642603tert-butyl{1-[2-(7,8-difluoro-2-oxoquinolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate

Product 1

HCID 86635322tert-Butyl {1-[2-(5,7-difluoro-2-oxoquinolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate

Procedure

5,7-Difluoroquinolin-2(1H)-one (Intermediate 25) (500 mg, 2.8 mmol) was deprotonated with sodium hydride (121 mg, 60% in oil, 3.04 mmol) and alkylated with 2-{4-[(tert-butoxycarbonyl)amino]piperidin-1-yl}ethyl methanesulfonate (Intermediate 6) (3.3 mmol) as described for Intermediate 20. Colorless solid, 637 mg (57%).

Sources & evidence

ORD record
ord-d9f02c21a5b446fab88b74122ba04db9
Source dataset
uspto-grants-2012_02
Patent number
US08124602B2

Reaction notes

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