Hydrochloric Acid → 6-{[3-fluoro-2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-2-methyl-4-(4-oxocyclohexyl)-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

HRID 2048734Notes

Reaction equation

HRID 2048734 reaction equation
O1[C:5]2([CH2:10][CH2:9][CH:8]([N:11]3[C:16](=[O:17])[C:15]([CH2:18][C:19]4[CH:24]=[CH:23][C:22]([C:25]5[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=5[C:31]5[NH:35][C:34](=[O:36])[O:33][N:32]=5)=[CH:21][C:20]=4[F:37])=[C:14]([CH2:38][CH2:39][CH3:40])[N:13]4[N:41]=[C:42]([CH3:44])[N:43]=[C:12]34)[CH2:7][CH2:6]2)[O:4]CC1.Cl.C(=O)([O-])O.[Na+]>O1CCCC1>[F:37][C:20]1[CH:21]=[C:22]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=2[C:31]2[NH:35][C:34](=[O:36])[O:33][N:32]=2)[CH:23]=[CH:24][C:19]=1[CH2:18][C:15]1[C:16](=[O:17])[N:11]([CH:8]2[CH2:9][CH2:10][C:5](=[O:4])[CH2:6][CH2:7]2)[C:12]2[N:13]([N:41]=[C:42]([CH3:44])[N:43]=2)[C:14]=1[CH2:38][CH2:39][CH3:40]

Participants

5

Reactant 3

HCID 313Hydrochloric Acid2×HCID 516892Sodium BicarbonateHCID 1360639494-(1,4-dioxaspiro[4.5]dec-8-yl)-6-{[3-fluoro-2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-2-methyl-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

Product 1

HCID 1360638546-{[3-fluoro-2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-2-methyl-4-(4-oxocyclohexyl)-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-oneYield 77.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 4-(1,4-dioxaspiro[4.5]dec-8-yl)-6-{[3-fluoro-2′-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-2-methyl-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one (0.25 g), 6N hydrochloric acid (2 mL) and tetrahydrofuran (10 mL) was stirred at room temperature for 2 hr. The reaction mixture was poured into saturated aqueous sodium hydrogen carbonate, and the mixture was adjusted to pH 4 with 1 N hydrochloric acid and extracted with ethyl acetate. The obtained ethyl acetate layer was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was recrystallized from ethyl acetate and hexane to give the title compound as colorless crystals (0.18 g, 74%).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe obtained ethyl acetate layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was recrystallized from ethyl acetate and hexane

Sources & evidence

ORD record
ord-cabadcd58c9a4b978728dfb43ec1fb79
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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