Tetrabutylammonium Fluoride → HCID 86687001, compound

HRID 1402134Notes

Reaction equation

HRID 1402134 reaction equation
[C:1]([C:5]1[CH:6]=[C:7]([NH:17][C:18]([NH:20][C@@H:21]2[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[C@H:24]([O:31][C:32]3[CH:33]=[CH:34][C:35]4[N:36]([C:38]([N:41]5[CH2:45][CH2:44][CH2:43][C@@H:42]5[CH2:46][O:47][Si](C(C)C)(C(C)C)C(C)C)=[N:39][N:40]=4)[CH:37]=3)[CH2:23][CH2:22]2)=[O:19])[N:8]([C:10]2[CH:15]=[CH:14][C:13]([CH3:16])=[CH:12][CH:11]=2)[N:9]=1)([CH3:4])([CH3:3])[CH3:2].CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1>[C:1]([C:5]1[CH:6]=[C:7]([NH:17][C:18]([NH:20][C@@H:21]2[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[C@H:24]([O:31][C:32]3[CH:33]=[CH:34][C:35]4[N:36]([C:38]([N:41]5[CH2:45][CH2:44][CH2:43][C@@H:42]5[CH2:46][OH:47])=[N:39][N:40]=4)[CH:37]=3)[CH2:23][CH2:22]2)=[O:19])[N:8]([C:10]2[CH:15]=[CH:14][C:13]([CH3:16])=[CH:12][CH:11]=2)[N:9]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 86686999HCID 86686999, compound

Product 1

HCID 86687001HCID 86687001, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of Intermediate 27d (27 mg, 0.034 mmol) in THF (1 mL) at −30° C. was added TBAF (1M in THF, 36 μL, 0.036 mmol) and the mixture was allowed to warm to RT over 1 h. The reaction mixture was applied to an SCX-2 cartridge (2 g) and washed with MeOH. The product was eluted with 2M NH3 in MeOH; concentration in vacuo gave a residue. Purification by HPLC (C6-Ph column, 10-70% MeCN in H2O, 0.1% HCO2H) gave the title compound as a white powder after freeze-drying (10.0 mg, 45%). LCMS (Method 5): Rt 4.18 min, m/z 635 [MH+]. 1H NMR (400 MHz, CDCl3): 1.25 (9H, s), 1.63-1.75 (1H, m), 1.81-1.95 (3H, m), 1.97-2.01 (3H, m), 2.26 (1H, m), 2.31 (3H, s), 3.17-3.26 (1H, m), 3.32-3.47 (2H, m), 3.57 (1H, dd, J 11.6, 3.2), 4.07-4.15 (1H, m), 4.99-5.07 (1H, m), 5.15 (1H, t, J 4.1), 5.57 (1H, d, J 8.9), 6.25 (1H, s), 6.61 (1H, s), 6.91 (1H, d, J 10.2), 7.16 (2H, d, J 8.3), 7.20-7.29 (4H, m), 7.32 (2H, d, J 8.0), 7.35-7.41 (2H, m).

Workup

  1. washwashed with MeOH
  2. washThe product was eluted with 2M NH3 in MeOH
  3. concentrationconcentration in vacuo
  4. customgave a residue
  5. customPurification by HPLC (C6-Ph column, 10-70% MeCN in H2O, 0.1% HCO2H)

Sources & evidence

ORD record
ord-120e4a50196d4dd88b1adf7062bf2046
Source dataset
uspto-grants-2014_12
Patent number
US08907094B2

Reaction notes

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