Tetrahydrofuran → HCID 178438734, compound

HRID 2048365Notes

Reaction equation

[F:1][C:2]1[CH:3]=[C:4]([C:35]2[C:36]([C:41]#[N:42])=[CH:37][CH:38]=[CH:39][CH:40]=2)[CH:5]=[CH:6][C:7]=1[CH2:8][C:9]1[C:10](=[O:34])[N:11]([CH:21]2[CH2:33][CH2:32][C:24]3([O:28][C@H:27]4[CH2:29][O:30][CH2:31][C@H:26]4[O:25]3)[CH2:23][CH2:22]2)[C:12]2[N:13]([N:18]=[CH:19][N:20]=2)[C:14]=1[CH2:15][CH2:16][CH3:17].C([BH3-])#N.[Na+].O1CCCC1>C(OCC)(=O)C>[F:1][C:2]1[CH:3]=[C:4]([C:35]2[C:36]([C:41]#[N:42])=[CH:37][CH:38]=[CH:39][CH:40]=2)[CH:5]=[CH:6][C:7]=1[CH2:8][C:9]1[C:10](=[O:34])[N:11]([C@H:21]2[CH2:22][CH2:23][C@H:24]([O:25][C@H:26]3[C@@H:27]([OH:28])[CH2:29][O:30][CH2:31]3)[CH2:32][CH2:33]2)[C:12]2[N:13]([N:18]=[CH:19][N:20]=2)[C:14]=1[CH2:15][CH2:16][CH3:17]

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 3′-fluoro-4′-({5-oxo-7-propyl-4-[(3a′R,6a′S)-tetrahydrospiro[cyclohexane-1,2′-furo[3,4-d][1,3]dioxol]-4-yl]-4,5-dihydro[1,2,4]triazolo[1,5-a]pyrimidin-6-yl}methyl)biphenyl-2-carbonitrile (1.3 g), sodium cyanoborohydride (2.9 g), boron trifluoride-diethyl ether complex (5.9 mL) and tetrahydrofuran (50 mL) was stirred at 70° C. for 2 days. 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 (0.39 g, 30%).

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-f8c29f5835cb4613a47f689e6c5dd41e
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08592431B2

Reaction notes

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