Tetrabutylammonium Fluoride → HCID 58300158, compound

HRID 876007Notes

Reaction equation

HRID 876007 reaction equation
[Si]([O:8][CH2:9][CH2:10][CH:11]1[CH2:16][CH2:15][N:14]([C:17]2[CH:18]=[CH:19][C:20]([NH:23][C:24]3[N:25]=[CH:26][C:27]4[C:32]5[CH:33]=[CH:34][N:35]=[C:36]([F:37])[C:31]=5[N:30]([CH:38]5[CH2:42][CH2:41][CH2:40][CH2:39]5)[C:28]=4[N:29]=3)=[N:21][CH:22]=2)[CH2:13][CH2:12]1)(C(C)(C)C)(C)C.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1>[CH:38]1([N:30]2[C:28]3[N:29]=[C:24]([NH:23][C:20]4[N:21]=[CH:22][C:17]([N:14]5[CH2:13][CH2:12][CH:11]([CH2:10][CH2:9][OH:8])[CH2:16][CH2:15]5)=[CH:18][CH:19]=4)[N:25]=[CH:26][C:27]=3[C:32]3[CH:33]=[CH:34][N:35]=[C:36]([F:37])[C:31]2=3)[CH2:42][CH2:41][CH2:40][CH2:39]1

Participants

4

Procedure

Compound 294 (78 mg, 132 μmol) was dissolved in dry THF (3 mL). Tetrabutylammonium fluoride, 1.0M in THF (1.00 mL, 1.00 mmol) was added and the reaction stirred at room temperature for 4 hours. The solvent was removed in vacuo and silica gel chromatography (gradient elution hexanes+2.5%/0-100% ethyl acetate+2.5% TEA) afforded compound 291 as a beige solid (44 mg, 70%). 1H NMR (500 MHz, DMSO-d6) δ 11.60-11.85 (m, 2 H) 9.49 (s, 2 H) 8.19-8.24 (m, 2 H) 8.13-8.19 (m, 2 H) 8.05-8.10 (m, 2 H) 7.96-8.04 (m, 2 H) 7.61-7.71 (m, 2 H) 5.48 (s, 1 H) 3.64 (d, J=11.98 Hz, 2 H) 3.44 (t, J=6.48 Hz, 2 H) 2.71-2.90 (m, 2 H) 2.20 (br. s., 2 H) 2.09 (br. s., 2 H) 2.00 (br. s., 2 H) 1.66-1.82 (m, 4 H) 1.52-1.66 (m, 1 H) 1.37 (d, J=6.60 Hz, 2 H) 1.28 (none, 2 H) ppm.

Workup

  1. customThe solvent was removed in vacuo and silica gel chromatography (gradient elution hexanes+2.5%/0-100% ethyl acetate+2.5% TEA)

Sources & evidence

ORD record
ord-b2cac45dde8a4d3e83af9d94ffd4c9cb
Source dataset
uspto-grants-2015_03
Patent number
US08980903B2

Reaction notes

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