Tetrabutylammonium Fluoride → HCID 135870903, compound

HRID 1254697Notes

Reaction equation

HRID 1254697 reaction equation
[Si]([O:8][C@@H:9]([CH3:42])[C@@H:10]([NH:31][C:32]1[CH:39]=[CH:38][C:35]([C:36]#[N:37])=[C:34]([Cl:40])[C:33]=1[CH3:41])[C:11]1[O:12][C:13]([C:16]2[CH:21]=[CH:20][C:19]([O:22][Si](C(C)(C)C)(C)C)=[C:18]([Cl:30])[CH:17]=2)=[N:14][N:15]=1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>>[Cl:40][C:34]1[C:33]([CH3:41])=[C:32]([NH:31][C@@H:10]([C:11]2[O:12][C:13]([C:16]3[CH:21]=[CH:20][C:19]([OH:22])=[C:18]([Cl:30])[CH:17]=3)=[N:14][N:15]=2)[C@@H:9]([OH:8])[CH3:42])[CH:39]=[CH:38][C:35]=1[C:36]#[N:37]

Participants

3

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 67006759HCID 67006759, compound

Product 1

HCID 135870903HCID 135870903, compound

Procedure

4-((1R,2S)-2-(tert-butyldimethylsilyloxy)-1-(5-(4-(tert-butyldimethylsilyloxy)-3-chloro-phenyl)-1,3,4-oxadiazol-2-yl)propylamino)-2-chloro-3-methylbenzonitrile (377 mg, 0.58 mmol) was deprotected using tetrabutylammonium fluoride (1.0 M solution in THF, 1.2 mL, 1.2 mmol) in a manner analogous used for the preparation of Example 22. After column chromatography (80% EtOAc/hexanes) the title compound was isolated as an off-white solid (23 mg). 1H NMR (400 MHz, CDCl3, δ in ppm) 7.91 (d, J=2.2 Hz, 1H), 7.77 (dd, J=2.2, 8.4 Hz, 1H), 7.46 (d, J=8.6 Hz, 1H), 7.15 (d, J=8.4 Hz, 1H), 6.84 (d, J=8.8 Hz, 1H), 5.68 (d, J=8.4 Hz, 1H), 5.08 (dd, J=3.7, 8.4 Hz, 1H), 4.62 (m, 1H), 2.39 (s, 3H), 1.40 (d, J=6.3 Hz, 3H).

Workup

  1. customanalogous used for the preparation of Example 22

Sources & evidence

ORD record
ord-9e1c38fe02fc4e15927eed8cbdd15df1
Source dataset
uspto-grants-2013_06
Patent number
US08455525B2

Reaction notes

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