Tetrahydrofuran → HCID 178440637, compound

HRID 1412299Notes

Reaction equation

[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][N:13]=[C:9]2[N:8]([CH:14]2[CH2:25][CH2:24][C:17]3([O:21][CH:20]([CH3:22])[CH:19]([CH3:23])[O:18]3)[CH2:16][CH2:15]2)[C:7](=[O:26])[C:6]=1[CH2:27][C:28]1[CH:33]=[CH:32][C:31]([C:34]2[C:35]([C:40]#[N:41])=[CH:36][CH:37]=[CH:38][CH:39]=2)=[CH:30][CH:29]=1)[CH2:2][CH2:3][CH3:4].C([BH3-])#N.[Na+].O1CCCC1>C(OCC)(=O)C>[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][N:13]=[C:9]2[N:8]([C@H:14]2[CH2:25][CH2:24][C@H:17]([O:18][CH:19]([CH3:23])[CH:20]([OH:21])[CH3:22])[CH2:16][CH2:15]2)[C:7](=[O:26])[C:6]=1[CH2:27][C:28]1[CH:33]=[CH:32][C:31]([C:34]2[C:35]([C:40]#[N:41])=[CH:36][CH:37]=[CH:38][CH:39]=2)=[CH:30][CH:29]=1)[CH2:2][CH2:3][CH3:4]

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of 4′-{[7-butyl-4-(2,3-dimethyl-1,4-dioxaspiro[4.5]dec-8-yl)-5-oxo-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]methyl}biphenyl-2-carbonitrile (1.2 g), sodium cyanoborohydride (0.71 g), boron trifluoride-diethyl ether complex (1.4 mL) and tetrahydrofuran (20 mL) was stirred at 50° C. for 24 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 a colorless solid (0.66 g, 53%).

Workup

washwashed with water
dry with materialwith saturated brine, and dried 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-5a0ab3ca5a484044b2890c9273571ece
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08921379B2

Reaction notes

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