Hydroxylamine HCl → HCID 178438548, compound

HRID 1412875Notes

Reaction equation

HRID 1412875 reaction equation
[Cl-].O[NH3+:3].[C:4](=[O:7])([O-])[OH:5].[Na+].[F:9][C:10]1[CH:11]=[C:12]([C:42]2[C:43]([C:48]#[N:49])=[CH:44][CH:45]=[CH:46][CH:47]=2)[CH:13]=[CH:14][C:15]=1[CH2:16][C:17]1[C:18](=[O:41])[N:19]([C@H:30]2[CH2:33][C@@H:32]([O:34][CH:35]([CH3:40])[C:36]([OH:39])([CH3:38])[CH3:37])[CH2:31]2)[C:20]2[N:21]([N:26]=[C:27]([CH3:29])[N:28]=2)[C:22]=1[CH2:23][CH2:24][CH3:25]>CS(C)=O.C(OCC)(=O)C>[F:9][C:10]1[CH:11]=[C:12]([C:42]2[CH:47]=[CH:46][CH:45]=[CH:44][C:43]=2[C:48]2[NH:3][C:4](=[O:7])[O:5][N:49]=2)[CH:13]=[CH:14][C:15]=1[CH2:16][C:17]1[C:18](=[O:41])[N:19]([C@H:30]2[CH2:33][C@@H:32]([O:34][CH:35]([CH3:40])[C:36]([OH:39])([CH3:37])[CH3:38])[CH2:31]2)[C:20]2[N:21]([N:26]=[C:27]([CH3:29])[N:28]=2)[C:22]=1[CH2:23][CH2:24][CH3:25]

Participants

6

Reactant 3

HCID 21645Hydroxylamine HClHCID 516892Sodium BicarbonateHCID 178438747HCID 178438747, compound

Product 1

HCID 178438548HCID 178438548, compound

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolvent2×HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of hydroxylammonium chloride (806 mg), sodium hydrogen carbonate (1.29 g) and dimethyl sulfoxide (2 mL) was stirred at 60° C. for 30 min, a solution of 3′-fluoro-4′-({4-[cis-3-(2-hydroxy-1,2-dimethylpropoxy)cyclobutyl]-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (430 mg) in dimethyl sulfoxide (2 mL) was added, and the mixture was stirred at 90° C. for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with water and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was dissolved in tetrahydrofuran (3 mL). N,N′-Carbonyldiimidazole (150 mg) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (141 mg) were added, and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with ethyl acetate, washed with saturated aqueous potassium hydrogensulfate solution and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=50/50→35/65 (volume ratio)] to give the title compound as a colorless amorphous compound (542 mg, 81%).

Workup

  1. stirringthe mixture was stirred at 90° C. for 16 hr
  2. washwashed with water
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. dissolutionthe residue was dissolved in tetrahydrofuran (3 mL)
  6. additionN,N′-Carbonyldiimidazole (150 mg) and then 1,8-diazabicyclo[5.4.0]undec-7-ene (141 mg) were added
  7. stirringthe mixture was stirred at room temperature for 2 hr
  8. additionThe reaction mixture was diluted with ethyl acetate
  9. washwashed with saturated aqueous potassium hydrogensulfate solution
  10. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  11. customThe solvent was evaporated under reduced pressure
  12. customthe residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=50/50→35/65 (volume ratio)]

Sources & evidence

ORD record
ord-f36e3b22968e4228a9b5b8a4abb62aef
Source dataset
uspto-grants-2014_12
Patent number
US08921379B2

Reaction notes

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