1,8-Diazabicyclo(5.4.0)undec-7-ene → 4'-{[4-(4-{[Tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-5-oxo-7-propyl-4,5-dihydro[1,2,3]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 1412487Notes

Reaction equation

HRID 1412487 reaction equation
[Si:1]([O:8][CH:9]1[CH2:14][CH2:13][CH:12]([NH:15][C:16]2[NH:20][N:19]=[N:18][CH:17]=2)[CH2:11][CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[C:21]([C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=1[C:29]1[CH:34]=[CH:33][C:32]([CH2:35][CH:36]([C:42](=O)[CH2:43][CH2:44][CH3:45])[C:37](OCC)=[O:38])=[CH:31][CH:30]=1)#[N:22].N12CCCN=C1CCCCC2>C(N(CC)C1C=CC=CC=1)C.C(OCC)(=O)C>[Si:1]([O:8][CH:9]1[CH2:14][CH2:13][CH:12]([N:15]2[C:37](=[O:38])[C:36]([CH2:35][C:32]3[CH:33]=[CH:34][C:29]([C:24]4[C:23]([C:21]#[N:22])=[CH:28][CH:27]=[CH:26][CH:25]=4)=[CH:30][CH:31]=3)=[C:42]([CH2:43][CH2:44][CH3:45])[N:20]3[N:19]=[N:18][CH:17]=[C:16]23)[CH2:11][CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 10020734Ethyl 2-[(2'-cyanobiphenyl-4-yl)methyl]-3-oxohexanoateHCID 178455069N-(4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-1,2,3-triazol-5-amine

Product 1

HCID 670092914'-{[4-(4-{[Tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-5-oxo-7-propyl-4,5-dihydro[1,2,3]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

Reagents, catalysts & solvents 2

HCID 7061N,N-DiethylanilineSolventHCID 8857Ethyl AcetateSolvent

Procedure

N-(4-{[tert-Butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-1,2,3-triazol-5-amine (5.55 g) and a solution of ethyl 2-[(2′-cyanobiphenyl-4-yl)methyl]-3-oxohexanoate (13.07 g) and 1,8-diazabicyclo[5.4.0]undec-7-ene (2.85 g) in N,N-diethylaniline (30 mL) were stirred at 185° C. for 15 hr. The reaction mixture was diluted with ethyl acetate, and the mixture was washed with 1 N hydrochloric acid 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=90/10→80/20 (volume ratio)] to give the title compound as a brown amorphous compound (1.58 g, 15%).

Workup

  1. washthe mixture was washed with 1 N hydrochloric acid
  2. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. customthe residue was purified by silica gel chromatography [eluent: hexane/ethyl acetate=90/10→80/20 (volume ratio)]

Sources & evidence

ORD record
ord-8e93177d66f14b349cc10cb9aca26f64
Source dataset
uspto-grants-2014_12
Patent number
US08921379B2

Reaction notes

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