Triethylamine → HCID 58547522, compound

HRID 1850260Notes

Reaction equation

HRID 1850260 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[C:19](Cl)=[N:18][CH:17]=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH:21]1[CH2:26][CH2:25][CH:24]([CH2:27][OH:28])[CH2:23][CH2:22]1.CCN(CC)CC>CS(C)=O.O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[C:19]([N:21]3[CH2:26][CH2:25][CH:24]([CH2:27][OH:28])[CH2:23][CH2:22]3)=[N:18][CH:17]=[CH:16][N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 4207714-PiperidinemethanolHCID 58547013Tert-butyl 4-(3-chloropyrazin-2-yl)piperidine-1-carboxylate

Product 1

HCID 58547522HCID 58547522, compoundYield 80.32%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 4-(3-chloro-pyrazin-2-yl)-piperidine-1-carboxylic acid tert-butyl ester (39) (297 mg, 1 mmol) and piperidin-4-yl-methanol (35) (126.5 mg, 1.1 mmol) in DMSO (6 mL) was added Et3N (202 mg, 2 mmol). The reaction mixture was stirred at 100° C. overnight. The reaction mixture was diluted with water, extracted with EtOAc (30 mL×3). The combined organic extracts were washed with water (30 mL) and brine (30 mL), dried over Na2SO4 and filtered. The filtrate was evaporated in vacuo and the residue was purified by flash column chromatography on silica gel to give compound (40) (302 mg, 0.8 mmol, yield 80.32%).

Workup

  1. extractionextracted with EtOAc (30 mL×3)
  2. washThe combined organic extracts were washed with water (30 mL) and brine (30 mL)
  3. dry with materialdried over Na2SO4
  4. filtrationfiltered
  5. customThe filtrate was evaporated in vacuo
  6. customthe residue was purified by flash column chromatography on silica gel

Sources & evidence

ORD record
ord-8c7b4393dd6a4baf9e4fe21211a1deeb
Source dataset
uspto-grants-2015_02
Patent number
US08957073B2

Reaction notes

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