Hydrochloric Acid → 4'-{[2-Methyl-5-oxo-4-(4-oxocyclohexyl)-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile

HRID 2062512Notes

Reaction equation

O1[C:5]2([CH2:10][CH2:9][CH:8]([N:11]3[C:16](=[O:17])[C:15]([CH2:18][C:19]4[CH:24]=[CH:23][C:22]([C:25]5[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=5)=[CH:21][CH:20]=4)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]4[N:36]=[C:37]([CH3:39])[N:38]=[C:12]34)[CH2:7][CH2:6]2)[O:4]CC1.Cl.O1CCCC1>C(OCC)(=O)C>[CH3:39][C:37]1[N:38]=[C:12]2[N:11]([CH:8]3[CH2:7][CH2:6][C:5](=[O:4])[CH2:10][CH2:9]3)[C:16](=[O:17])[C:15]([CH2:18][C:19]3[CH:20]=[CH:21][C:22]([C:25]4[C:26]([C:31]#[N:32])=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:23][CH:24]=3)=[C:14]([CH2:33][CH2:34][CH3:35])[N:13]2[N:36]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 4′-{[4-(1,4-dioxaspiro[4.5]dec-8-yl)-2-methyl-5-oxo-7-propyl-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (27 g), 6N hydrochloric acid (80 mL) and tetrahydrofuran (160 mL) was stirred at 70° C. for 16 hr. The reaction mixture was diluted with ethyl acetate, washed 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 a colorless solid (20 g, 80%).

Workup

washwashed with 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-44ab1431105e487d9c3d5ca48dd7d76c
Source dataset: uspto-grants-2012_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08283353B2

Reaction notes

Loading…