4-[4-(1-hydroxyethyl)benzyl]-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 → 4-(4-acetylbenzyl)-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

HRID 1688894Notes

Reaction equation

HRID 1688894 reaction equation
[OH:1][CH:2]([C:4]1[CH:42]=[CH:41][C:7]([CH2:8][N:9]2[C:14](=[O:15])[C:13]([CH2:16][C:17]3[CH:22]=[CH:21][C:20]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=4[C:29]4[NH:33][C:32](=[O:34])[O:31][N:30]=4)=[CH:19][CH:18]=3)=[C:12]([CH2:35][CH2:36][CH3:37])[N:11]3[N:38]=[CH:39][N:40]=[C:10]23)=[CH:6][CH:5]=1)[CH3:3]>[O-2].[O-2].[Mn+4].C(Cl)Cl>[C:2]([C:4]1[CH:5]=[CH:6][C:7]([CH2:8][N:9]2[C:14](=[O:15])[C:13]([CH2:16][C:17]3[CH:18]=[CH:19][C:20]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=4[C:29]4[NH:33][C:32](=[O:34])[O:31][N:30]=4)=[CH:21][CH:22]=3)=[C:12]([CH2:35][CH2:36][CH3:37])[N:11]3[N:38]=[CH:39][N:40]=[C:10]23)=[CH:41][CH:42]=1)(=[O:1])[CH3:3]

Participants

4

Reactant 1

HCID 1360639434-[4-(1-hydroxyethyl)benzyl]-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 1360639164-(4-acetylbenzyl)-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)-oneYield 86.3%

Reagents, catalysts & solvents 2

HCID 178418406HCID 178418406, compoundCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of 4-[4-(1-hydroxyethyl)benzyl]-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 (0.5 g), manganese dioxide (2.3 g) and methylene chloride (20 mL) was stirred at room temperature for 16 hr. The insoluble material was filtered off through celite, and the filtrate was concentrated. The obtained residue was purified by silica gel column chromatography to give the title compound as colorless crystals (0.43 g, 85%).

Workup

  1. filtrationThe insoluble material was filtered off through celite
  2. concentrationthe filtrate was concentrated
  3. customThe obtained residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-2273eb6f99704beca1c7f7548cac05fb
Source dataset
uspto-grants-2012_04
Patent number
US08148383B2

Reaction notes

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