Tetrabutylammonium Fluoride → HCID 15344101, compound

HRID 1736638Notes

Reaction equation

HRID 1736638 reaction equation
[C:1]([NH:8][C@H:9]([C@@H:17]([O:38][Si](C(C)(C)C)(C)C)[CH2:18][C@@H:19]([NH:27][C:28]([O:30][CH2:31][C:32]1[CH:33]=[N:34][CH:35]=[CH:36][CH:37]=1)=[O:29])[CH2:20][C:21]1[CH:26]=[CH:25][N:24]=[CH:23][CH:22]=1)[CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O1CCCC1>[C:1]([NH:8][C@H:9]([C@@H:17]([OH:38])[CH2:18][C@@H:19]([NH:27][C:28]([O:30][CH2:31][C:32]1[CH:33]=[N:34][CH:35]=[CH:36][CH:37]=1)=[O:29])[CH2:20][C:21]1[CH:22]=[CH:23][N:24]=[CH:25][CH:26]=1)[CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2]

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 10875945HCID 10875945, compound

Product 1

HCID 15344101HCID 15344101, compoundYield 84.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of 74.5 mg (0.117 mmol) of (2S,3S,5S)-2-(Boc-amino)-5-(N-((3-pyridinyl)methoxycarbonyl)amino)-1-phenyl-6-(4-pyridinyl)-3-(tert-butyldimethylsilyloxy)-hexane in 4 ml of tetrahydrofuran was treated with 102 μl of 1M solution of tetrabutylammonium fluoride in tetrahydrofuran. After being stirred at ambient temperature for 24 h, the solvent was removed in vacuo, and the residue was purified by silica gel chromatography using 10% methanol in dichloromethane to provide 51.4 mg (84%) of the desired compound as a white solid. 1H NMR (CDCl3) δ1.37 (s, 9H), 1.65 (t, 2H), 2.82-3.01 (m, 5H), 3.70 (m, 2H), 4.03 (m, 1H), 4.78 (d, 1H), 5.03 (s, 2H), 5.18 (br d, 1H), 7.06 (d, 2H, 7.16-7.31 (m, 6H), 7.61 (d, 1H), 8.44 (d, 2H), 8.57 (s , 2H). Mass spectrum: (M+H)+ =521.

Workup

  1. customthe solvent was removed in vacuo
  2. customthe residue was purified by silica gel chromatography

Sources & evidence

ORD record
ord-52ff7c33e8f1493bb87a3fd47a75222a
Source dataset
uspto-grants-1996_07
Patent number
US05541321

Reaction notes

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