Dichloromethane → 6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-4-(2-oxo-1,4-dioxaspiro[4.5]dec-8-yl)-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

HRID 2048785Notes

Reaction equation

HRID 2048785 reaction equation
[O:1]=[C:2]1[CH2:7][CH2:6][CH:5]([N:8]2[C:13](=[O:14])[C:12]([CH2:15][C:16]3[CH:21]=[CH:20][C:19]([C:22]4[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=4[C:28]4[NH:32][C:31](=[O:33])[O:30][N:29]=4)=[CH:18][CH:17]=3)=[C:11]([CH2:34][CH2:35][CH3:36])[N:10]3[N:37]=[CH:38][N:39]=[C:9]23)[CH2:4][CH2:3]1.C[Si](C)(C)O[CH2:43][C:44]([O:46][Si](C)(C)C)=[O:45].FC(F)(F)S(O[Si](C(C)(C)C)(C)C)(=O)=O.C(Cl)Cl>C(OCC)(=O)C>[O:33]=[C:31]1[O:30][N:29]=[C:28]([C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=2[C:19]2[CH:18]=[CH:17][C:16]([CH2:15][C:12]3[C:13](=[O:14])[N:8]([CH:5]4[CH2:6][CH2:7][C:2]5([O:46][C:44](=[O:45])[CH2:43][O:1]5)[CH2:3][CH2:4]4)[C:9]4[N:10]([N:37]=[CH:38][N:39]=4)[C:11]=3[CH2:34][CH2:35][CH3:36])=[CH:21][CH:20]=2)[NH:32]1

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 118503Trimethylsilyl ((trimethylsilyl)oxy)acetateHCID 123564tert-Butyldimethylsilyl trifluoromethanesulphonateHCID 1360639444-(4-oxocyclohexyl)-6-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one

Product 1

HCID 1360639096-{[2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-4-(2-oxo-1,4-dioxaspiro[4.5]dec-8-yl)-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-oneYield 26%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
-78 °C

Procedure

A mixture of 4-(4-oxocyclohexyl)-6-{[2′-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-7-propyl[1,2,4]triazolo[1,5-a]pyrimidin-5(4H)-one (0.2 g), trimethylsilyl [(trimethylsilyl)oxy]acetate (0.16 mL), tert-butyl(dimethyl)silyl trifluoromethanesulfonate (0.18 mL) and methylene chloride (5 mL) was stirred at −78° C. for 1 hr, and then at room temperature for 16 hr. The reaction mixture was diluted with ethyl acetate, washed with water 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 column chromatography to give the title compound as colorless crystals (0.066 g, 26%).

Workup

  1. waitat room temperature for 16 hr
  2. washwashed with water
  3. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-f7e392f573da45fd91e2c469604a708f
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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