2-Propanol, sodium salt (1:1) → (S)-5-(5-(1-((tert-butyldimethylsilyl)oxy)-2,3-dihydro-1H-inden-4-yl)-1,3,4-thiadiazol-2-yl)-2-isopropoxybenzonitrile

HRID 1891454Notes

Reaction equation

[Si:1]([O:8][C@@H:9]1[C:17]2[C:12](=[C:13]([C:18]3[S:22][C:21]([C:23]4[CH:24]=[CH:25][C:26](F)=[C:27]([CH:30]=4)[C:28]#[N:29])=[N:20][N:19]=3)[CH:14]=[CH:15][CH:16]=2)[CH2:11][CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH3:32][CH:33]([CH3:35])[O-:34].[Na+]>CC(O)C>[Si:1]([O:8][C@@H:9]1[C:17]2[C:12](=[C:13]([C:18]3[S:22][C:21]([C:23]4[CH:24]=[CH:25][C:26]([O:34][CH:33]([CH3:35])[CH3:32])=[C:27]([CH:30]=4)[C:28]#[N:29])=[N:20][N:19]=3)[CH:14]=[CH:15][CH:16]=2)[CH2:11][CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 60 °C

Procedure

Prepared using General Procedure 2: To a solution of (S)-5-(5-(1-((tert-butyldimethylsilyl)oxy)-2,3-dihydro-1H-inden-4-yl)-1,3,4-thiadiazol-2-yl)-2-fluorobenzonitrile (21 mg, 0.04 mmol) in IPA (2 mL) was added sodium isopropoxide (5 mg, 0.06 mmol). The reaction mixture was heated at 60° C. for 2 h. Upon cooling, the solvent was evaporated and the product was purified by a silica gel column chromatography (EA/hexanes) to afford (S)-5-(5-(1-((tert-butyldimethylsilyl)oxy)-2,3-dihydro-1H-inden-4-yl)-1,3,4-thiadiazol-2-yl)-2-isopropoxybenzonitrile (15 mg, 68%). LCMS-ESI (m/z) calculated for C28H34N2O2SSi: 491.7, found 492.2 [M+H]+, tR=5.17 min (Method 1).

Workup

customPrepared
temperatureUpon cooling
customthe solvent was evaporated
customthe product was purified by a silica gel column chromatography (EA/hexanes)

Sources & evidence

ORD record: ord-5edc025611f6464f8d28272c4544fbfd
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08507538B2

Reaction notes

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