Toluene → 4'-{[4-(5-Methyl-6,13-dioxadispiro[3.2.5.2]tetradec-10-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 519793Notes

Reaction equation

HRID 519793 reaction equation
[O:1]=[C:2]1[C:7]([CH2:8][C:9]2[CH:14]=[CH:13][C:12]([C:15]3[C:16]([C:21]#[N:22])=[CH:17][CH:18]=[CH:19][CH:20]=3)=[CH:11][CH:10]=2)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]2[N:26]=[CH:27][N:28]=[C:4]2[N:3]1[CH:29]1[CH2:34][CH2:33][C:32](=[O:35])[CH2:31][CH2:30]1.O[CH2:37][C:38]1([CH:42]([OH:44])[CH3:43])[CH2:41][CH2:40][CH2:39]1.O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C1(C)C=CC=CC=1>C(OCC)(=O)C>[CH3:43][CH:42]1[O:44][C:32]2([CH2:31][CH2:30][CH:29]([N:3]3[C:2](=[O:1])[C:7]([CH2:8][C:9]4[CH:10]=[CH:11][C:12]([C:15]5[C:16]([C:21]#[N:22])=[CH:17][CH:18]=[CH:19][CH:20]=5)=[CH:13][CH:14]=4)=[C:6]([CH2:23][CH2:24][CH3:25])[N:5]4[N:26]=[CH:27][N:28]=[C:4]34)[CH2:34][CH2:33]2)[O:35][CH2:37][C:38]21[CH2:41][CH2:40][CH2:39]2

Participants

6

Reactant 4

HCID 1140TolueneHCID 521998p-Toluenesulfonic acid monohydrateHCID 670088534'-{[5-Oxo-4-(4-oxocyclohexyl)-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrileHCID 670094231-[1-(Hydroxymethyl)cyclobutyl]ethanol

Product 1

HCID 670102484'-{[4-(5-Methyl-6,13-dioxadispiro[3.2.5.2]tetradec-10-yl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 4′-{[5-oxo-4-(4-oxocyclohexyl)-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (12.67 g), 1-[1-(hydroxymethyl)cyclobutyl]ethanol (4.26 g), p-toluenesulfonic acid hydrate (0.57 g) and toluene (300 mL) was refluxed with heating for 5 hr while dehydrating with a Dean-Stark trap. The reaction mixture was cooled to room temperature, and diluted with ethyl acetate, and the mixture was washed with saturated aqueous sodium hydrogen carbonate solution and 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=80/20→40/60 (volume ratio)] to give the title compound as a colorless amorphous compound (13.64 g, 87%).

Workup

  1. temperaturewas refluxed
  2. temperaturewith heating for 5 hr
  3. washthe mixture was washed with saturated aqueous sodium hydrogen carbonate solution and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated under reduced pressure
  6. customthe residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=80/20→40/60 (volume ratio)]

Sources & evidence

ORD record
ord-725816246f0c47c99c6fc4b6a75cafd9
Source dataset
uspto-grants-2015_08
Patent number
US09115136B2

Reaction notes

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