4-Methylmorpholine → HCID 178438572, compound

HRID 2048302Notes

Reaction equation

HRID 2048302 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[CH:14]=[CH:13][C:12]([CH2:15][C:16]2[C:17](=[O:37])[N:18]([C@H:28]3[CH2:33][CH2:32][C@H:31]([C:34](O)=[O:35])[CH2:30][CH2:29]3)[C:19]3[N:20]([N:25]=[CH:26][N:27]=3)[C:21]=2[CH2:22][CH2:23][CH3:24])=[CH:11][CH:10]=1)#[N:2].CN1CCOCC1.C(Cl)(=O)OCC.[BH4-].[Na+].[Cl-].[NH4+]>CO.O1CCCC1>[OH:35][CH2:34][C@H:31]1[CH2:30][CH2:29][C@H:28]([N:18]2[C:17](=[O:37])[C:16]([CH2:15][C:12]3[CH:13]=[CH:14][C:9]([C:4]4[C:3]([C:1]#[N:2])=[CH:8][CH:7]=[CH:6][CH:5]=4)=[CH:10][CH:11]=3)=[C:21]([CH2:22][CH2:23][CH3:24])[N:20]3[N:25]=[CH:26][N:27]=[C:19]23)[CH2:33][CH2:32]1

Participants

8

Reactant 5

HCID 79724-MethylmorpholineHCID 10928Ethyl chloroformateHCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 178438574HCID 178438574, compound

Product 1

HCID 178438572HCID 178438572, compoundYield 78%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
-15 °C

Procedure

To a mixture of trans-4-{6-[(2′-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-4(5H)-yl}cyclohexanecarboxylic acid (7 g), N-methylmorpholine (1.9 mL) and tetrahydrofuran (100 mL) was added ethyl chlorocarbonate (1.6 mL) at 0° C., and the mixture was stirred at the same temperature for 2 hr. The reaction mixture was cooled to −15° C., sodium borohydride (1.6 g) and methanol (25 mL) were added, and the mixture was allowed to gradually warm to room temperature. Saturated aqueous ammonium chloride solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography to give the title compound as a colorless solid (5.3 g, 78%).

Workup

  1. temperatureto gradually warm to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-05b0ac20c68b44f593d46b86dfb9aace
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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