Ammonium Chloride → HCID 178438725, compound

HRID 2048469Notes

Reaction equation

HRID 2048469 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:42])[N:18]([C@H:28]3[CH2:33][CH2:32][C@H:31]([O:34][CH:35]([CH3:41])[C:36](OCC)=[O:37])[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])=[C:11]([F:43])[CH:10]=1)#[N:2].[BH4-].[Li+].[Cl-].[NH4+]>O1CCCC1>[F:43][C:11]1[CH:10]=[C:9]([C:4]2[C:3]([C:1]#[N:2])=[CH:8][CH:7]=[CH:6][CH:5]=2)[CH:14]=[CH:13][C:12]=1[CH2:15][C:16]1[C:17](=[O:42])[N:18]([C@H:28]2[CH2:33][CH2:32][C@H:31]([O:34][CH:35]([CH3:41])[CH2:36][OH:37])[CH2:30][CH2:29]2)[C:19]2[N:20]([N:25]=[CH:26][N:27]=2)[C:21]=1[CH2:22][CH2:23][CH3:24]

Participants

5

Reactant 3

HCID 25517Ammonium ChlorideHCID 4148881Lithium borohydride2×HCID 178438728HCID 178438728, compound

Product 1

HCID 178438725HCID 178438725, compoundYield 58.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

A mixture of ethyl 2-[(trans-4-{6-[(2′-cyano-3-fluorobiphenyl-4-yl)methyl]-5-oxo-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-4(5H)-yl}cyclohexyl)oxy]propanoate (1.5 g), lithium tetrahydroborate (0.18 g) and tetrahydrofuran (15 mL) was stirred at 0° C. for 1 hr and then at room temperature for 6 hr. Lithium tetrahydroborate (0.18 g) was further added, and the mixture was stirred at room temperature for 15 hr. The reaction mixture was added to saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound as a colorless solid (0.81 g, 58%).

Workup

  1. waitat room temperature for 6 hr
  2. stirringthe mixture was stirred at room temperature for 15 hr
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-98bbb50979ea41e0a4f6595901e0cfa8
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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