Hydrochloric Acid → 4'-{[4-(3-{[Tert-butyl(dimethyl)silyl]oxy}-1,5-dioxaspiro[5.5]undec-9-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 1688644Notes

Reaction equation

HRID 1688644 reaction equation
[OH:1][CH:2]1[CH2:7][O:6][C:5]2([CH2:12][CH2:11][CH:10]([N:13]3[C:18](=[O:19])[C:17]([CH2:20][C:21]4[CH:26]=[CH:25][C:24]([C:27]5[C:28]([C:33]#[N:34])=[CH:29][CH:30]=[CH:31][CH:32]=5)=[CH:23][CH:22]=4)=[C:16]([CH2:35][CH2:36][CH3:37])[N:15]4[N:38]=[CH:39][N:40]=[C:14]34)[CH2:9][CH2:8]2)[O:4][CH2:3]1.N1C(C)=CC=CC=1C.FC(F)(F)S(O[Si:55]([C:58]([CH3:61])([CH3:60])[CH3:59])([CH3:57])[CH3:56])(=O)=O.Cl>O1CCCC1.O.C(OCC)(=O)C>[Si:55]([O:1][CH:2]1[CH2:7][O:6][C:5]2([CH2:12][CH2:11][CH:10]([N:13]3[C:18](=[O:19])[C:17]([CH2:20][C:21]4[CH:26]=[CH:25][C:24]([C:27]5[C:28]([C:33]#[N:34])=[CH:29][CH:30]=[CH:31][CH:32]=5)=[CH:23][CH:22]=4)=[C:16]([CH2:35][CH2:36][CH3:37])[N:15]4[N:38]=[CH:39][N:40]=[C:14]34)[CH2:9][CH2:8]2)[O:4][CH2:3]1)([C:58]([CH3:61])([CH3:60])[CH3:59])([CH3:57])[CH3:56]

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 79372,6-LutidineHCID 123564tert-Butyldimethylsilyl trifluoromethanesulphonateHCID 670088804'-{[4-(3-Hydroxy-1,5-dioxaspiro[5.5]undec-9-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

Product 1

HCID 670084814'-{[4-(3-{[Tert-butyl(dimethyl)silyl]oxy}-1,5-dioxaspiro[5.5]undec-9-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrileYield 100%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

4′-{[4-(3-Hydroxy-1,5-dioxaspiro[5.5]undec-9-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (1.5 g) and 2,6-lutidine (0.50 mL) were dissolved in tetrahydrofuran (5 mL), and tert-butyl(dimethyl)silyl trifluoromethanesulfonate (0.98 mL) was added at 0° C. The mixture was stirred at room temperature for 1.5 hr. Ethyl acetate and water were added to the reaction mixture, the mixture was added to 1 M hydrochloric acid, 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 to give the title compound as a colorless solid (1.9 g, 100%).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure

Sources & evidence

ORD record
ord-d68fa5a7e21b466c9da8d4ee1856fbe8
Source dataset
uspto-grants-2012_04
Patent number
US08148383B2

Reaction notes

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