Sodium Bicarbonate → HCID 131730864, compound

HRID 1425128Notes

Reaction equation

HRID 1425128 reaction equation
[C:1]([N:4]1[CH2:9][CH2:8][C@H:7]([NH:10][C:11](=[O:20])[O:12][CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C@H:6]([O:21][CH2:22][CH3:23])[CH2:5]1)(=[O:3])[NH2:2].Br[CH:25]([CH3:35])[C:26](=O)[C:27]([O:29][CH2:30][CH2:31]CC)=[O:28].C(=O)(O)[O-].[Na+]>C1COCC1>[CH2:13]([O:12][C:11]([NH:10][C@H:7]1[CH2:8][CH2:9][N:4]([C:1]2[O:3][C:25]([CH3:35])=[C:26]([C:27]([O:29][CH2:30][CH3:31])=[O:28])[N:2]=2)[CH2:5][C@H:6]1[O:21][CH2:22][CH3:23])=[O:20])[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1

Participants

5

Reactant 3

HCID 516892Sodium BicarbonateHCID 87440690Butyl 3-bromo-2-oxobutanoateHCID 131730865HCID 131730865, compound

Product 1

HCID 131730864HCID 131730864, compoundYield 88.8%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

The same operation as in Example (103c) was performed using cis(±)-benzyl (1-carbamoyl-3-ethoxypiperidin-4-yl)carbamate obtained in Example (112f) (0.88 g, 2.74 mmol), butyl 3-bromo-2-oxobutanoate obtained in Example (106a) (4 g, 15.8 mmol), sodium bicarbonate (0.7 g, 8.33 mmol) and THF (15 mL). The resulting residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/10, 1/2, 1/1, 2/1, 4/1) to obtain 1.05 g of the title compound as a light brown oily substance (83%).

Workup

  1. customThe resulting residue was purified by silica gel column chromatography (elution solvent: ethyl acetate/hexane=1/10, 1/2, 1/1, 2/1, 4/1)

Sources & evidence

ORD record
ord-37c13115b87c41ce92bbe4001c15759d
Source dataset
uspto-grants-2015_01
Patent number
US08927588B2

Reaction notes

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