N,N-Diethylaniline → 2-(5-{[4-(4-{[Tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}pyridin-2-yl)benzonitrile

HRID 2062590Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:14]=[CH:13][C:12]([CH2:15][CH:16]([C:22](=O)[CH2:23][CH2:24][CH3:25])[C:17]([O:19]CC)=O)=[CH:11][CH:10]=1)#[N:2].[Si:27]([O:34][CH:35]1[CH2:40][CH2:39][CH:38]([NH:41][C:42]2[NH:46][CH:45]=[N:44][N:43]=2)[CH2:37][CH2:36]1)([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28].C(N(CC)C1C=CC=CC=1)C>C(OCC)(=O)C>[Si:27]([O:34][CH:35]1[CH2:40][CH2:39][CH:38]([N:41]2[C:17](=[O:19])[C:16]([CH2:15][C:12]3[CH:11]=[CH:10][C:9]([C:4]4[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=4[C:1]#[N:2])=[N:14][CH:13]=3)=[C:22]([CH2:23][CH2:24][CH3:25])[N:43]3[N:44]=[CH:45][N:46]=[C:42]23)[CH2:37][CH2:36]1)([C:30]([CH3:33])([CH3:31])[CH3:32])([CH3:29])[CH3:28]

Participants

Conditions

Temperature: 180 °C

Procedure

A mixture of ethyl 2-{[6-(2-cyanophenyl)pyridin-3-yl]methyl}-3-oxohexanoate (1.8 g), N-(4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-4H-1,2,4-triazol-3-amine (1.4 g) and N,N-diethylaniline (30 mL) was stirred at 180° C. for 8 hr. The obtained reaction mixture was diluted with ethyl acetate, washed 3 times with 1 N hydrochloric acid and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound as a colorless solid (0.42 g, 21%).

Workup

customThe obtained reaction mixture
washwashed 3 times with 1 N hydrochloric acid and saturated brine
dry with materialdried over anhydrous magnesium sulfate
customThe solvent was evaporated under reduced pressure
customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record: ord-ea51d18d866d4091a65a1b498e0f10c0
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08283353B2

Reaction notes

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